v3.26.1
Non-interest revenue - Summary of Disaggregation of Revenue from Business Segments (Detail)
₨ in Millions, $ in Millions
12 Months Ended
Mar. 31, 2026
INR (₨)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
INR (₨)
Mar. 31, 2024
INR (₨)
Disaggregation of Revenue [Line Items]        
Fees and commissions ₨ 356,569.1 $ 3,800.2 ₨ 324,086.5 ₨ 280,965.9
Retail Banking        
Disaggregation of Revenue [Line Items]        
Fees and commissions 275,977.0 2,941.3 254,120.5 229,890.7
Wholesale Banking        
Disaggregation of Revenue [Line Items]        
Fees and commissions 35,148.4 374.6 30,699.5 27,844.8
Treasury Services        
Disaggregation of Revenue [Line Items]        
Fees and commissions 149.7 1.6 159.7 414.9
Others        
Disaggregation of Revenue [Line Items]        
Fees and commissions ₨ 45,294.0 $ 482.7 ₨ 39,106.8 ₨ 22,815.5