v3.26.1
Insurance services - Summary of the Bank's Policyholder Account Balances on the Consolidated Balance (Detail)
₨ in Millions, $ in Millions
Mar. 31, 2026
INR (₨)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
INR (₨)
Disclosure Of Policyholder Account Balances [Line Items]      
Policyholder Account Balance ₨ 71,862.0 $ 765.9 ₨ 81,652.8
Group Traditional Life [Member]      
Disclosure Of Policyholder Account Balances [Line Items]      
Policyholder Account Balance 23,464.7 250.1 26,771.0
Group Traditional Pension [Member]      
Disclosure Of Policyholder Account Balances [Line Items]      
Policyholder Account Balance 6,841.0 72.9 12,824.8
Group Variable Life [Member]      
Disclosure Of Policyholder Account Balances [Line Items]      
Policyholder Account Balance 20,764.6 221.3 20,051.5
Group Variable Pension [Member]      
Disclosure Of Policyholder Account Balances [Line Items]      
Policyholder Account Balance 12,255.1 130.6 13,296.2
Individual VIP pension [Member]      
Disclosure Of Policyholder Account Balances [Line Items]      
Policyholder Account Balance 6,467.4 68.9 7,543.8
Statutory reserves [Member]      
Disclosure Of Policyholder Account Balances [Line Items]      
Policyholder Account Balance ₨ 2,069.2 $ 22.1 ₨ 1,165.5