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Troubled Debt Restructurings Modifications (Detail) ₨ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Mar. 31, 2020 INR (₨) | Mar. 31, 2020 USD ($) | [1] | Mar. 31, 2019 INR (₨) | Mar. 31, 2020 USD ($) | [1]
Retail Loans | Retail Business Banking |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | ₨ 964.1 | [1] |  | ₨ 17.9 | [2] | $ 12.8 |
Balance of Principal Forgiven |  | 0.0 | [1] | $ 0.0 | 0.0 | [2] |  |
Net P&L impact | [3] | 43.1 | [1] | $ 0.6 | 4.5 | [2] |  |
Commercial vehicle and construction equipment finance |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | 0.0 |  |  | 0.0 |  |  |
Balance of Principal Forgiven |  | 0.0 |  |  | 0.0 |  |  |
Net P&L impact | [3] | 0.0 |  |  | 0.0 |  |  |
Wholesale loans |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | 0.0 |  |  | 0.0 |  |  |
Balance of Principal Forgiven |  | 0.0 |  |  | 0.0 |  |  |
Net P&L impact | [3] | 0.0 |  |  | 0.0 |  |  |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal Payments | Retail Loans | Retail Business Banking |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | 0.0 | [1],[3],[4] |  | 0.0 | [2],[4] | 0.0 | [3]
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal Payments | Commercial vehicle and construction equipment finance |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | 0.0 | [4] |  | 0.0 |  |  |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal Payments | Wholesale loans |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | 0.0 | [4] |  | 0.0 |  |  |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Interest Payments | Retail Loans | Retail Business Banking |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value | [5] | 964.1 | [1] |  | 17.9 | [2] | 12.8 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Interest Payments | Commercial vehicle and construction equipment finance |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value | [5] | 0.0 |  |  | 0.0 |  |  |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Interest Payments | Wholesale loans |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value | [5] | 0.0 |  |  | 0.0 |  |  |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal and Interest Payments | Retail Loans | Retail Business Banking |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | 0.0 | [1] |  | 0.0 | [2] | $ 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal and Interest Payments | Commercial vehicle and construction equipment finance |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | 0.0 |  |  | 0.0 |  |  |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal and Interest Payments | Wholesale loans |  |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |  |
TDR modifications carrying value |  | ₨ 0.0 |  |  | ₨ 0.0 |  |  |
[1] | TDR modification during the year ended March 31, 2020 comprised of 13 cases.
[2] | TDR modification during the year ended March 31, 2019 comprised of one case.
[3] | Balances reflect charge-offs and/or allowance for credit losses and/or income not recognized/deferred.
[4] | TDRs involving changes in the amount of principal payment may include principal forgiveness or deferral of periodic and/or final principal payments.
[5] | TDRs involving changes in the amount of interest payments may involve a reduction in interest rate.

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