Related party transactions - Balances Receivable from 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] | |||
| Total | ₨ 128,593.2 | $ 1,370.5 | ₨ 131,414.7 |
| Others | |||
| Related Party Transaction [Line Items] | |||
| Loans | 20.0 | 28.2 | |
| Other assets | 1,419.5 | 1,713.7 | |
| Investments available for sale securities | 28,449.4 | 28,498.1 | |
| Total | 29,888.9 | 30,240.0 | |
| Related Party | |||
| Related Party Transaction [Line Items] | |||
| Loans | 20.0 | 0.2 | 28.2 |
| Other assets | 1,419.5 | 15.1 | 1,713.7 |
| Investments available for sale securities | 28,449.4 | 303.2 | 28,498.1 |
| Total | ₨ 29,888.9 | $ 318.5 | ₨ 30,240.0 |
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- Definition For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current assets classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount due from parties in nontrade transactions, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of receivable from sale of investment. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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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