v3.26.1
Goodwill and Intangible Assets - Summary of Movement in Intangible Assets (Parenthetical) (Detail) - INR (₨)
₨ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Customer-related and marketing related intangible assets [member]    
Disclosure of detailed information about intangible assets [line items]    
Impairment related to intangible recognized on acquisition ₨ 851 ₨ 1,155