Share capital - Additional Information (Detail) $ / shares in Units, ₨ in Millions, $ in Millions |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Mar. 31, 2026
$ / shares
shares
|
Mar. 31, 2025
shares
|
Mar. 31, 2024
INR (₨)
shares
|
Mar. 31, 2022
shares
|
Feb. 02, 2022
USD ($)
|
|
| Disclosure of classes of share capital [line items] | |||||
| Reduction in retained earnings due to shares repurchased into treasury | ₨ | ₨ (4,926) | ||||
| Class A Ordinary Shares | |||||
| Disclosure of classes of share capital [line items] | |||||
| Par or nominal value per share | $ / shares | $ 0.0001 | ||||
| Share repurchase program authorized amount | $ | $ 250 | ||||
| Broker purchased share | 10,688,015 | ||||
| Shares pending cancellation | ₨ | ₨ 4,926 | ||||
| Purchase of ordinary shares | 0 | 0 | |||
| Treasury shares | 38,698,288 | 38,698,288 | |||
| Shares pending cancellation | 1,655,300 | ||||