Equity (Details) - INR (₨) ₨ in Millions |
12 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Disclosure of Equity [Abstract] | ||
| Issued as of April 01 | 434,102,399 | 183,332,460 |
| Issued for cash | 0 | 249,998,963 |
| Exercise of share options | 505,290 | 770,976 |
| Issued as of March 31 | 434,607,689 | 434,102,399 |
| Value | ₨ 4,359 | ₨ 4,354 |