v3.26.1
Right-of-Use asset - Additional information (Detail)
₨ in Millions
12 Months Ended
Mar. 31, 2026
INR (₨)
Disclosure of quantitative information about right-of-use assets [line items]  
Leases committed but not commenced ₨ 999
Bottom of range [member]  
Disclosure of quantitative information about right-of-use assets [line items]  
Lease committed and not commenced 1 year
Top of range [member]  
Disclosure of quantitative information about right-of-use assets [line items]  
Lease committed and not commenced 5 years