Other current non-financial assets (Details 4) - INR (₨) ₨ in Millions	Mar. 31, 2026	Mar. 31, 2025
Disclosure of other current non-financial assets [Abstract]
Prepayments for purchase of bandwidth	₨ 480	₨ 174
Prepayments - others	674	658
Current prepayments	₨ 1,154	₨ 832

The amount of current prepayments. [Refer: Prepayments]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 78
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_b&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_CurrentPrepayments
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant