v3.25.2
Repurchase and Resell Agreements - Additional Information (Detail)
₨ in Millions, $ in Millions
12 Months Ended
Mar. 31, 2025
INR (₨)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
INR (₨)
Repurchase Agreement and Resale Agreement Counterparty [Line Items]      
Securities purchased under agreements to resell ₨ 349,210.7 $ 4,087.7 ₨ 34,178.3
Securities sold under repurchase agreements, amount outstanding ₨ 129,190.0 $ 1,512.2 ₨ 56,541.0
Maximum      
Repurchase Agreement and Resale Agreement Counterparty [Line Items]      
Securities purchased under agreements to resell, maturity (days) 14 days    
Securities sold under repurchase agreements, maturity (days) 14 days