Other non-current financial assets (Details) - INR (₨) ₨ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Categories Of Noncurrent Financial Assets [Abstract] | ||
| Security deposits | ₨ 683 | ₨ 643 |
| Interest accrued on investments | 110 | 98 |
| Bank Deposits | 2,019 | 1,652 |
| Total Deposits Assets | ₨ 2,812 | ₨ 2,393 |