Liability for put options with non-controlling interests - Summary of liability for put options with non-controlling interests (Details) ₨ in Millions, $ in Millions |
Mar. 31, 2025
INR (₨)
|
Mar. 31, 2025
USD ($)
|
Mar. 31, 2024
INR (₨)
|
|---|---|---|---|
| Liability For Put Options With Non-controlling Interests [Abstract] | |||
| Liability for put options with non-controlling interests, Non-current | ₨ 5,343 | $ 63 | ₨ 4,935 |
| Liability for Put Options With Non-controlling Interests Current | ₨ 1,027 | $ 12 | ₨ 1,000 |