Goodwill and Intangible Assets - Summary of Movement in Intangible Assets (Parenthetical) (Detail) - Intangible assets [member] - INR (₨) ₨ in Millions	12 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Disclosure of detailed information about intangible assets [line items]
Impairment related to intangible recognized on acquisition	₨ 1,816
Measurement period adjustment		₨ 36

The amount of impairment loss recognised in profit or loss for intangible assets other than goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets other than goodwill]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2022-03-24
-Paragraph 118
-Subparagraph e
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e_iv&doctype=Standard
-URIDate 2022-03-24

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration