v3.26.1
Income Taxes - Reconciliation of Beginning and Ending Balance of Unrecognized Tax Benefits (Detail)
₨ in Millions, $ in Millions
12 Months Ended
Mar. 31, 2026
INR (₨)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
INR (₨)
Mar. 31, 2024
INR (₨)
Income Tax Contingency [Line Items]        
Opening balance ₨ 6,717.3 $ 71.5 ₨ 22,042.3 ₨ 48,792.1
Increase related to acquisition of eHDFC 0.0 0.0 0.0 52,980.5
Decrease related to prior year tax positions (726.1) (7.7) (16,515.6) (80,874.4)
Increase related to current year tax positions 212.5 2.3 1,190.6 1,144.1
Closing balance ₨ 6,203.7 $ 66.1 ₨ 6,717.3 ₨ 22,042.3