Related party transactions - Balances Payable to Related Parties (Detail) ₨ in Millions, $ in Millions |
Mar. 31, 2026
INR (₨)
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Mar. 31, 2026
USD ($)
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Mar. 31, 2025
INR (₨)
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| Related Party Transaction [Line Items] | |||
| Balances in non-interest-bearing deposits | ₨ 3,504,125.5 | $ 37,345.5 | ₨ 3,116,596.7 |
| Balances in interest-bearing deposits | 27,497,592.2 | 293,057.6 | 23,994,357.2 |
| Others | |||
| Related Party Transaction [Line Items] | |||
| Balances in non-interest-bearing deposits | 3,154.1 | 2,349.0 | |
| Balances in interest-bearing deposits | 2,427.6 | 462.6 | |
| Accrued expenses and other liabilities | 0.0 | 110.8 | |
| Total | 5,581.7 | 2,922.4 | |
| Related Party | |||
| Related Party Transaction [Line Items] | |||
| Balances in non-interest-bearing deposits | 3,154.1 | 33.6 | 2,349.0 |
| Balances in interest-bearing deposits | 2,427.6 | 25.9 | 462.6 |
| Accrued expenses and other liabilities | 0.0 | 0.0 | 110.8 |
| Total | ₨ 5,581.7 | $ 59.5 | ₨ 2,922.4 |
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- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate of all domestic and foreign interest-bearing deposit liabilities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenses incurred but not yet paid classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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