Stock - RSUs outstanding, Employees Stock Incentive Master Scheme (Detail) - Restricted Stock Units (RSUs) [Member] - Employee Stock Incentive Master Scheme Two Thousand And Twenty Two - ₨ / shares |
12 Months Ended | |||
|---|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 31, 2022 |
|
| Share Based Payment Arrangement Equity Instruments Other Than Options Exercise Price Range [Line Items] | ||||
| Number of shares arising out of units | 14,885,428 | 11,721,804 | 2,891,000 | 0 |
| Weighted average remaining life (years) | 2 years 4 months 9 days | |||
| Weighted average exercise price | ₨ 1 |