v3.26.1
Employee benefits (Details 3) - INR (₨)
₨ in Millions
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Defined Benefit Plan Value Increase Decrease [Domain]        
Projected benefit obligation at the end of the year ₨ 529 ₨ 446 ₨ 382 ₨ 299
Plan assets at the end of the year (503) (399) (357) ₨ (271)
Funded status amount of liability recognized in the Balance Sheet ₨ 26 ₨ 47 ₨ 25