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Bank Overview - Additional Information (Detail) - ₨ / shares | 12 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Sep. 20, 2019 | Sep. 19, 2019
Nature Of Business [Line Items] |  |  |  |
Shares issued, price per share |  |  | ₨ 1 |
Equity shares, issued | 5,545,540,976 | 5,512,776,482 | 5,470,763,894 |
Equity shares, par value | ₨ 1 | ₨ 1 | ₨ 1 | ₨ 2
Housing Development Finance Corporation Limited |  |  |  |
Nature Of Business [Line Items] |  |  |  |
Equity ownership interest of the bank's largest shareholder | 21.00% | 21.10% |  |

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