v3.26.1
Segment reporting (Details 4)
₨ in Millions, $ in Millions
12 Months Ended
Mar. 31, 2026
INR (₨)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
INR (₨)
Mar. 31, 2024
INR (₨)
Revenue        
Revenue ₨ 44,877 $ 474 ₨ 39,886 ₨ 35,634
Country of domicile [member]        
Revenue        
Revenue 41,736   36,850 33,304
Foreign countries [member]        
Revenue        
Revenue ₨ 3,141   ₨ 3,036 ₨ 2,330