CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) ₨ in Millions, $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
|
Mar. 31, 2026
INR (₨)
|
Mar. 31, 2026
USD ($)
|
Mar. 31, 2025
INR (₨)
|
Mar. 31, 2024
INR (₨)
|
|
| Net unrealized gain (loss) arising during the period | ₨ 26,821.0 | $ 285.8 | ₨ 13,677.7 | |
| Net unrealized gain (loss) arising during the period, tax | (2,771.9) | (29.5) | (491.6) | (254.2) |
| Net unrealized gain (loss) arising during the period, tax | 65,830.7 | 701.6 | (37,208.6) | (15,898.7) |
| Reclassification adjustment for net (gain) loss included in net income, tax | 13,887.4 | 148.0 | (3,582.9) | (1,675.7) |
| Past service cost arising during the period | 2,319.0 | 24.7 | ||
| Amortisation of past service cost to Net periodic cost | (277.0) | 3.0 | ||
| Net unrealized gain (loss) arising during the period | ₨ 1,966.0 | $ 21.0 | ₨ (4,237.2) | |
| X | ||||||||||
- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss) (OCI) for proportionate share of equity method investee's OCI. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, before reclassification adjustment, of tax expense (benefit) for unrealized gain (loss) from (increase) decrease in liability for future policy benefit from change in discount rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of tax expense (benefit), before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of tax (expense) benefit for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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