diff --git a/addons/account/models/account_tax.py b/addons/account/models/account_tax.py
index 4e9397b7506..ad7d9ad324d 100644
--- a/addons/account/models/account_tax.py
+++ b/addons/account/models/account_tax.py
@@ -1132,6 +1132,7 @@ class AccountTax(models.Model):
             return {'tax': tax_values['tax_repartition_line'].tax_id}
 
         global_tax_details = {
+            'to_process': to_process,
             'base_amount_currency': 0.0,
             'base_amount': 0.0,
             'tax_amount_currency': 0.0,
diff --git a/addons/l10n_in/models/account_invoice.py b/addons/l10n_in/models/account_invoice.py
index c65d2c54fd9..6533e2fd320 100644
--- a/addons/l10n_in/models/account_invoice.py
+++ b/addons/l10n_in/models/account_invoice.py
@@ -3,8 +3,11 @@
 import base64
 import logging
 
+from collections import defaultdict
+
 from odoo import api, fields, models, _
 from odoo.exceptions import ValidationError, RedirectWarning, UserError
+from odoo.tools import frozendict
 from odoo.tools.image import image_data_uri
 
 _logger = logging.getLogger(__name__)
@@ -142,3 +145,117 @@ class AccountMove(models.Model):
             barcode = self.env['ir.actions.report'].barcode(barcode_type="QR", value=payment_url, width=120, height=120)
             return image_data_uri(base64.b64encode(barcode))
         return super()._generate_qr_code(silent_errors)
+
+    def _l10n_in_get_hsn_summary_table(self):
+        self.ensure_one()
+        display_uom = self.env.user.user_has_groups('uom.group_uom')
+        tag_igst = self.env.ref('l10n_in.tax_tag_igst')
+        tag_cgst = self.env.ref('l10n_in.tax_tag_cgst')
+        tag_sgst = self.env.ref('l10n_in.tax_tag_sgst')
+        tag_cess = self.env.ref('l10n_in.tax_tag_cess')
+
+        def filter_invl_to_apply(invoice_line):
+            return bool(invoice_line.product_id.l10n_in_hsn_code)
+
+        def grouping_key_generator(base_line, _tax_values):
+            # The rate is only for SGST/CGST.
+            if base_line['is_refund']:
+                tax_rep_field = 'refund_repartition_line_ids'
+            else:
+                tax_rep_field = 'invoice_repartition_line_ids'
+            gst_taxes = base_line['taxes'].flatten_taxes_hierarchy()[tax_rep_field]\
+                .filtered(lambda tax_rep: (
+                    tax_rep.repartition_type == 'tax'
+                    and any(tag in tax_rep.tag_ids for tag in tag_sgst + tag_cgst + tag_igst)
+                ))\
+                .tax_id
+
+            return {
+                'l10n_in_hsn_code': base_line['record'].product_id.l10n_in_hsn_code,
+                'rate': sum(gst_taxes.mapped('amount')),
+                'uom': base_line['record'].product_uom_id,
+            }
+
+        aggregated_values = self._prepare_invoice_aggregated_taxes(
+            filter_invl_to_apply=filter_invl_to_apply,
+            grouping_key_generator=grouping_key_generator,
+        )
+
+        results_map = {}
+        has_igst = False
+        has_gst = False
+        has_cess = False
+        for grouping_key, tax_details in aggregated_values['tax_details'].items():
+            values = results_map.setdefault(grouping_key, {
+                'quantity': 0.0,
+                'amount_untaxed': tax_details['base_amount_currency'],
+                'tax_amounts': defaultdict(lambda: 0.0),
+            })
+
+            # Quantity.
+            invoice_line_ids = set()
+            for invoice_line in tax_details['records']:
+                if invoice_line.id not in invoice_line_ids:
+                    values['quantity'] += invoice_line.quantity
+                    invoice_line_ids.add(invoice_line.id)
+
+            # Tax amounts.
+            for tax_details in tax_details['group_tax_details']:
+                tax_rep = tax_details['tax_repartition_line']
+                if tag_igst in tax_rep.tag_ids:
+                    has_igst = True
+                    values['tax_amounts'][tag_igst] += tax_details['tax_amount_currency']
+                if tag_cgst in tax_rep.tag_ids:
+                    has_gst = True
+                    values['tax_amounts'][tag_cgst] += tax_details['tax_amount_currency']
+                if tag_sgst in tax_rep.tag_ids:
+                    has_gst = True
+                    values['tax_amounts'][tag_sgst] += tax_details['tax_amount_currency']
+                if tag_cess in tax_rep.tag_ids:
+                    has_cess = True
+                    values['tax_amounts'][tag_cess] += tax_details['tax_amount_currency']
+
+        # In case of base_line with HSN code but no taxes, an entry in results_map should be created.
+        for base_line, _to_update_vals, _tax_values_list in aggregated_values['to_process']:
+            if base_line['taxes']:
+                continue
+
+            grouping_key = frozendict(grouping_key_generator(base_line, None))
+            results = results_map.setdefault(grouping_key, {
+                'quantity': 0.0,
+                'amount_untaxed': 0.0,
+                'tax_amounts': defaultdict(lambda: 0.0),
+            })
+            results['quantity'] += base_line['quantity']
+            results['amount_untaxed'] += base_line['price_subtotal']
+
+        nb_columns = 5
+        if has_igst:
+            nb_columns += 1
+        if has_gst:
+            nb_columns += 2
+        if has_cess:
+            nb_columns += 1
+
+        items = []
+        for grouping_key, values in results_map.items():
+            items.append({
+                'l10n_in_hsn_code': grouping_key['l10n_in_hsn_code'],
+                'quantity': values['quantity'],
+                'uom': grouping_key['uom'],
+                'rate': grouping_key['rate'],
+                'amount_untaxed': values['amount_untaxed'],
+                'tax_amount_igst': values['tax_amounts'].get(tag_igst, 0.0),
+                'tax_amount_cgst': values['tax_amounts'].get(tag_cgst, 0.0),
+                'tax_amount_sgst': values['tax_amounts'].get(tag_sgst, 0.0),
+                'tax_amount_cess': values['tax_amounts'].get(tag_cess, 0.0),
+            })
+
+        return {
+            'has_igst': has_igst,
+            'has_gst': has_gst,
+            'has_cess': has_cess,
+            'nb_columns': nb_columns,
+            'display_uom': display_uom,
+            'items': items,
+        }
diff --git a/addons/l10n_in/tests/__init__.py b/addons/l10n_in/tests/__init__.py
new file mode 100644
index 00000000000..fe6cde896ca
--- /dev/null
+++ b/addons/l10n_in/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_invoice_hsn_summary
diff --git a/addons/l10n_in/tests/test_invoice_hsn_summary.py b/addons/l10n_in/tests/test_invoice_hsn_summary.py
new file mode 100644
index 00000000000..c8122504fe7
--- /dev/null
+++ b/addons/l10n_in/tests/test_invoice_hsn_summary.py
@@ -0,0 +1,624 @@
+# -*- coding: utf-8 -*-
+from freezegun import freeze_time
+
+from odoo.addons.account.tests.common import AccountTestInvoicingCommon
+from odoo.fields import Command
+from odoo.tests import tagged
+
+
+@tagged('post_install', '-at_install', 'post_install_l10n')
+class TestInvoiceHSNsummary(AccountTestInvoicingCommon):
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass(chart_template_ref='in')
+
+        cls.test_hsn_code_1 = '1234'
+        cls.test_hsn_code_2 = '4321'
+
+        cls.uom_unit = cls.env.ref('uom.product_uom_unit')
+        cls.uom_dozen = cls.env.ref('uom.product_uom_dozen')
+
+        cls.product_a.l10n_in_hsn_code = cls.test_hsn_code_1
+        cls.product_b.l10n_in_hsn_code = cls.test_hsn_code_2
+        cls.product_c = cls.env['product.product'].create({
+            'name': 'product_c',
+            'l10n_in_hsn_code': cls.test_hsn_code_1,
+            'uom_id': cls.env.ref('uom.product_uom_unit').id,
+            'lst_price': 1000.0,
+            'property_account_income_id': cls.company_data['default_account_revenue'].id,
+        })
+
+        cls.gst_5 = cls.env['account.chart.template'].ref('sgst_sale_5')
+        cls.gst_18 = cls.env['account.chart.template'].ref('sgst_sale_18')
+
+        cls.igst_0 = cls.env['account.chart.template'].ref('igst_sale_0')
+        cls.igst_5 = cls.env['account.chart.template'].ref('igst_sale_5')
+        cls.igst_18 = cls.env['account.chart.template'].ref('igst_sale_18')
+        cls.cess_5_plus_1591 = cls.env['account.chart.template'].ref('cess_5_plus_1591_sale')
+        cls.exempt_0 = cls.env['account.chart.template'].ref('exempt_sale')
+
+        cls.display_uom = cls.env.user.user_has_groups('uom.group_uom')
+
+    def assert_hsn_summary(self, invoice, expected_values):
+        hsn_summary = invoice._l10n_in_get_hsn_summary_table()
+        self.assertEqual(
+            {k: len(v) if k == 'items' else v for k, v in hsn_summary.items()},
+            {k: len(v) if k == 'items' else v for k, v in expected_values.items()},
+        )
+        self.assertEqual(len(hsn_summary['items']), len(expected_values['items']))
+        for item, expected_item in zip(hsn_summary['items'], expected_values['items']):
+            self.assertDictEqual(item, expected_item)
+
+    @freeze_time('2019-01-01')
+    def create_invoice(self, invoice_line_ids, **kwargs):
+        return self.env['account.move'].create({
+            'move_type': 'out_invoice',
+            'partner_id': self.partner_a.id,
+            **kwargs,
+            'invoice_line_ids': invoice_line_ids,
+        })
+
+    def test_l10n_in_hsn_summary_1(self):
+        """ Test GST/IGST taxes. """
+        invoice = self.create_invoice(invoice_line_ids=[
+            Command.create({
+                'product_id': self.product_a.id,
+                'quantity': 2.0,
+                'price_unit': 100,
+                'tax_ids': [Command.set(self.gst_5.ids)], #Tax: 10
+            }),
+            Command.create({
+                'product_id': self.product_c.id,
+                'quantity': 1.0,
+                'price_unit': 600,
+                'tax_ids': [Command.set(self.gst_5.ids)], #Tax: 30
+            }),
+            Command.create({
+                'product_id': self.product_a.id,
+                # 'l10n_in_hsn_code': self.test_hsn_code_1,
+                'quantity': 5.0,
+                'price_unit': 300,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [Command.set(self.gst_5.ids)], #Tax: 75
+            }),
+
+            Command.create({
+                'product_id': self.product_a.id,
+                'quantity': 2.0,
+                'price_unit': 100,
+                'tax_ids': [Command.set(self.gst_18.ids)], #Tax: 36
+            }),
+            Command.create({
+                'product_id': self.product_c.id,
+                'quantity': 1.0,
+                'price_unit': 600,
+                'tax_ids': [Command.set(self.gst_18.ids)], #Tax: 108
+            }),
+            Command.create({
+                'product_id': self.product_a.id,
+                # 'l10n_in_hsn_code': self.test_hsn_code_1,
+                'quantity': 5.0,
+                'price_unit': 300,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [Command.set(self.gst_18.ids)], #Tax: 270
+            }),
+        ])
+
+        self.assertRecordValues(invoice, [{
+            'amount_untaxed': 4600.0,
+            'amount_tax': 529.0,
+            'amount_total': 5129.0,
+        }])
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': False,
+            'has_gst': True,
+            'has_cess': False,
+            'nb_columns': 7,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 8.0,
+                    'uom': self.uom_unit,
+                    'rate': 5.0,
+                    'amount_untaxed': 2300.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 57.5,
+                    'tax_amount_sgst': 57.5,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 8.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 2300.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 207.0,
+                    'tax_amount_sgst': 207.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
+
+        # Change the UOM of the second line.
+        invoice.invoice_line_ids = [
+            Command.update(invoice.invoice_line_ids[1].id, {'product_uom_id': self.uom_dozen.id}),
+        ]
+
+        self.assertRecordValues(invoice, [{
+            'amount_untaxed': 16000.0,
+            'amount_tax': 1099.0,
+            'amount_total': 17099.0,
+        }])
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': False,
+            'has_gst': True,
+            'has_cess': False,
+            'nb_columns': 7,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 7.0,
+                    'uom': self.uom_unit,
+                    'rate': 5.0,
+                    'amount_untaxed': 1700.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 42.5,
+                    'tax_amount_sgst': 42.5,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 1.0,
+                    'uom': self.uom_dozen,
+                    'rate': 5.0,
+                    'amount_untaxed': 12000.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 300.0,
+                    'tax_amount_sgst': 300.0,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 8.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 2300.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 207.0,
+                    'tax_amount_sgst': 207.0,
+                    'tax_amount_cess': 0.0,
+                }
+            ]
+        })
+
+        # Change GST 5% taxes to IGST.
+        invoice.invoice_line_ids = [
+            Command.update(invoice.invoice_line_ids[0].id, {'tax_ids': [Command.set(self.igst_5.ids)]}),
+            Command.update(invoice.invoice_line_ids[1].id, {'tax_ids': [Command.set(self.igst_5.ids)]}),
+            Command.update(invoice.invoice_line_ids[2].id, {'tax_ids': [Command.set(self.igst_5.ids)]}),
+        ]
+
+        self.assertRecordValues(invoice, [{
+            'amount_untaxed': 16000.0,
+            'amount_tax': 1099.0,
+            'amount_total': 17099.0,
+        }])
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': True,
+            'has_gst': True,
+            'has_cess': False,
+            'nb_columns': 8,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 7.0,
+                    'uom': self.uom_unit,
+                    'rate': 5.0,
+                    'amount_untaxed': 1700.0,
+                    'tax_amount_igst': 85.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 1.0,
+                    'uom': self.uom_dozen,
+                    'rate': 5.0,
+                    'amount_untaxed': 12000.0,
+                    'tax_amount_igst': 600.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 8.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 2300.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 207.0,
+                    'tax_amount_sgst': 207.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
+
+        # Put back the UOM of the second line to unit.
+        invoice.invoice_line_ids = [
+            Command.update(invoice.invoice_line_ids[1].id, {
+                'product_uom_id': self.uom_unit.id,
+                'price_unit': 600,
+                'tax_ids': [Command.set(self.igst_5.ids)],
+            }),
+        ]
+
+        self.assertRecordValues(invoice, [{
+            'amount_untaxed': 4600.0,
+            'amount_tax': 529.0,
+            'amount_total': 5129.0,
+        }])
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': True,
+            'has_gst': True,
+            'has_cess': False,
+            'nb_columns': 8,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 8.0,
+                    'uom': self.uom_unit,
+                    'rate': 5.0,
+                    'amount_untaxed': 2300.0,
+                    'tax_amount_igst': 115.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 8.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 2300.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 207.0,
+                    'tax_amount_sgst': 207.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
+
+        # Change GST 18% taxes to IGST.
+        invoice.invoice_line_ids = [
+            Command.update(invoice.invoice_line_ids[3].id, {'tax_ids': [Command.set(self.igst_18.ids)]}),
+            Command.update(invoice.invoice_line_ids[4].id, {'tax_ids': [Command.set(self.igst_18.ids)]}),
+            Command.update(invoice.invoice_line_ids[5].id, {'tax_ids': [Command.set(self.igst_18.ids)]}),
+        ]
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': True,
+            'has_gst': False,
+            'has_cess': False,
+            'nb_columns': 6,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 8.0,
+                    'uom': self.uom_unit,
+                    'rate': 5.0,
+                    'amount_untaxed': 2300.0,
+                    'tax_amount_igst': 115.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 8.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 2300.0,
+                    'tax_amount_igst': 414.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
+
+    def test_l10n_in_hsn_summary_2(self):
+        """ Test CESS taxes in combination with GST/IGST. """
+        invoice = self.create_invoice(invoice_line_ids=[
+            Command.create({
+                'product_id': self.product_a.id,
+                'quantity': 1.0,
+                'price_unit': 15.80,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [Command.set((self.gst_18 + self.cess_5_plus_1591).ids)],
+            })
+        ])
+
+        self.assertRecordValues(invoice, [{
+            'amount_untaxed': 15.8,
+            'amount_tax': 5.22,
+            'amount_total': 21.02,
+        }])
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': False,
+            'has_gst': True,
+            'has_cess': True,
+            'nb_columns': 8,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 1.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 15.8,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 1.42,
+                    'tax_amount_sgst': 1.42,
+                    'tax_amount_cess': 2.38,
+                },
+            ],
+        })
+
+        # Change GST 18% taxes to IGST.
+        invoice.invoice_line_ids = [
+            Command.update(invoice.invoice_line_ids.id, {
+                'tax_ids': [Command.set((self.igst_18 + self.cess_5_plus_1591).ids)],
+            }),
+        ]
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': True,
+            'has_gst': False,
+            'has_cess': True,
+            'nb_columns': 7,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 1.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 15.8,
+                    'tax_amount_igst': 2.84,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 2.38,
+                },
+            ],
+        })
+
+    def test_l10n_in_hsn_summary_3(self):
+        """ Test with mixed HSN codes. """
+        invoice = self.create_invoice(invoice_line_ids=[
+            Command.create({
+                'product_id': self.product_a.id,
+                'quantity': 1.0,
+                'price_unit': 100,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [Command.set(self.gst_18.ids)],
+            }),
+            Command.create({
+                # 'l10n_in_hsn_code': self.test_hsn_code_1,
+                'product_id': self.product_a.id,
+                'quantity': 2.0,
+                'price_unit': 50,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [Command.set(self.gst_18.ids)],
+            }),
+            Command.create({
+                'product_id': self.product_b.id,
+                'quantity': 1.0,
+                'price_unit': 100,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [Command.set(self.gst_18.ids)],
+            }),
+            Command.create({
+                'product_id': self.product_b.id,
+                # 'l10n_in_hsn_code': self.test_hsn_code_2,
+                'quantity': 2.0,
+                'price_unit': 50,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [Command.set(self.gst_18.ids)],
+            })
+        ])
+
+        self.assertRecordValues(invoice, [{
+            'amount_untaxed': 400.0,
+            'amount_tax': 72.0,
+            'amount_total': 472.0,
+        }])
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': False,
+            'has_gst': True,
+            'has_cess': False,
+            'nb_columns': 7,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 3.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 200.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 18.0,
+                    'tax_amount_sgst': 18.0,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_2,
+                    'quantity': 3.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 200.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 18.0,
+                    'tax_amount_sgst': 18.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
+
+        # Change GST 18% taxes to IGST.
+        invoice.invoice_line_ids = [
+            Command.update(invoice.invoice_line_ids[0].id, {'tax_ids': [Command.set(self.igst_18.ids)]}),
+            Command.update(invoice.invoice_line_ids[1].id, {'tax_ids': [Command.set(self.igst_18.ids)]}),
+            Command.update(invoice.invoice_line_ids[2].id, {'tax_ids': [Command.set(self.igst_18.ids)]}),
+            Command.update(invoice.invoice_line_ids[3].id, {'tax_ids': [Command.set(self.igst_18.ids)]}),
+        ]
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': True,
+            'has_gst': False,
+            'has_cess': False,
+            'nb_columns': 6,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 3.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 200.0,
+                    'tax_amount_igst': 36.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_2,
+                    'quantity': 3.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 200.0,
+                    'tax_amount_igst': 36.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
+
+    def test_l10n_in_hsn_summary_4(self):
+        """ Zero rated GST or no taxes at all."""
+        invoice = self.create_invoice(invoice_line_ids=[
+            Command.create({
+                'product_id': self.product_a.id,
+                'quantity': 1.0,
+                'price_unit': 350.0,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [],
+            }),
+            Command.create({
+                'product_id': self.product_a.id,
+                'quantity': 1.0,
+                'price_unit': 350.0,
+                'product_uom_id': self.uom_unit.id,
+                'tax_ids': [],
+            }),
+        ])
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': False,
+            'has_gst': False,
+            'has_cess': False,
+            'nb_columns': 5,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 2.0,
+                    'uom': self.uom_unit,
+                    'rate': 0.0,
+                    'amount_untaxed': 700.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
+
+        # No tax to IGST 0%/exempt.
+        invoice.invoice_line_ids = [
+            Command.update(invoice.invoice_line_ids[0].id, {'tax_ids': [Command.set(self.igst_0.ids)]}),
+            Command.update(invoice.invoice_line_ids[1].id, {'tax_ids': [Command.set(self.exempt_0.ids)]}),
+        ]
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': False,
+            'has_gst': False,
+            'has_cess': False,
+            'nb_columns': 5,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 2.0,
+                    'uom': self.uom_unit,
+                    'rate': 0.0,
+                    'amount_untaxed': 700.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
+
+        # Put one IGST 18% to get a value on the IGST column.
+        invoice.invoice_line_ids = [
+            Command.update(invoice.invoice_line_ids[0].id, {'tax_ids': [Command.set(self.igst_18.ids)]}),
+        ]
+
+        self.assert_hsn_summary(invoice, {
+            'has_igst': True,
+            'has_gst': False,
+            'has_cess': False,
+            'nb_columns': 6,
+            'display_uom': self.display_uom,
+            'items': [
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 1.0,
+                    'uom': self.uom_unit,
+                    'rate': 18.0,
+                    'amount_untaxed': 350.0,
+                    'tax_amount_igst': 63.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+                {
+                    'l10n_in_hsn_code': self.test_hsn_code_1,
+                    'quantity': 1.0,
+                    'uom': self.uom_unit,
+                    'rate': 0.0,
+                    'amount_untaxed': 350.0,
+                    'tax_amount_igst': 0.0,
+                    'tax_amount_cgst': 0.0,
+                    'tax_amount_sgst': 0.0,
+                    'tax_amount_cess': 0.0,
+                },
+            ],
+        })
diff --git a/addons/l10n_in/views/report_invoice.xml b/addons/l10n_in/views/report_invoice.xml
index 3f7847b1ae3..9a4d84dc237 100644
--- a/addons/l10n_in/views/report_invoice.xml
+++ b/addons/l10n_in/views/report_invoice.xml
@@ -58,6 +58,59 @@
             </h2>
         </xpath>
 
+        <xpath expr="//div[@id='payment_term']" position="before">
+            <t t-if="o.company_id.account_fiscal_country_id.code == 'IN'">
+                <t t-set="hsn_summary" t-value="o._l10n_in_get_hsn_summary_table()"/>
+                <t t-if="hsn_summary">
+                    <div name="l10n_in_hsn_summary" class="mt-3">
+                        <table class="table table-sm table-borderless col-6" style="page-break-inside: avoid;">
+                            <thead>
+                                <th t-att-colspan="hsn_summary['nb_columns']"><h3>HSN Summary</h3></th>
+                            </thead>
+                            <thead>
+                                <th>HSN/SAC</th>
+                                <th class="text-end">Quantity</th>
+                                <th class="text-end">Rate %</th>
+                                <th class="text-end">Taxable Value</th>
+                                <th class="text-end" t-if="hsn_summary['has_gst']">SGST</th>
+                                <th class="text-end" t-if="hsn_summary['has_gst']">CGST</th>
+                                <th class="text-end" t-if="hsn_summary['has_igst']">IGST</th>
+                                <th class="text-end" t-if="hsn_summary['has_cess']">CESS</th>
+                            </thead>
+                            <tr t-foreach="hsn_summary['items']" t-as="item">
+                                <td t-esc="item['l10n_in_hsn_code']"/>
+                                <td class="text-end">
+                                    <span t-esc="item['quantity']"/>
+                                    <span t-if="hsn_summary['display_uom']">(<t t-esc="item['uom'].name"/>)</span>
+                                </td>
+                                <td class="text-end" t-esc="item['rate']"/>
+                                <td class="text-end">
+                                    <span t-esc="item['amount_untaxed']"
+                                          t-options="{'widget': 'monetary', 'display_currency': o.currency_id}"/>
+                                </td>
+                                <td class="text-end" t-if="hsn_summary['has_gst']">
+                                    <span t-esc="item['tax_amount_sgst']"
+                                          t-options="{'widget': 'monetary', 'display_currency': o.currency_id}"/>
+                                </td>
+                                <td class="text-end" t-if="hsn_summary['has_gst']">
+                                    <span t-esc="item['tax_amount_cgst']"
+                                          t-options="{'widget': 'monetary', 'display_currency': o.currency_id}"/>
+                                </td>
+                                <td class="text-end" t-if="hsn_summary['has_igst']">
+                                    <span t-esc="item['tax_amount_igst']"
+                                          t-options="{'widget': 'monetary', 'display_currency': o.currency_id}"/>
+                                </td>
+                                <td class="text-end" t-if="hsn_summary['has_cess']">
+                                    <span t-esc="item['tax_amount_cess']"
+                                          t-options="{'widget': 'monetary', 'display_currency': o.currency_id}"/>
+                                </td>
+                            </tr>
+                        </table>
+                    </div>
+                </t>
+            </t>
+        </xpath>
+
     </template>
 
     <!-- Workaround for Studio reports, see odoo/odoo#60660 -->