Income Taxes - Reconciliation of Income Taxes at Indian Statutory Income Tax Rate to Income Tax Expense as Reported (Detail) ₨ in Millions, $ in Millions |
12 Months Ended | |||
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Mar. 31, 2025
INR (₨)
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Mar. 31, 2025
USD ($)
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Mar. 31, 2024
INR (₨)
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Mar. 31, 2023
INR (₨)
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| Reconciliation of Estimated Income Taxes to Income Tax Expense as Reported [Line Items] | ||||
| Income before income tax expense | ₨ 861,546.2 | $ 10,084.5 | ₨ 705,459.0 | ₨ 662,381.8 |
| Statutory income tax rate | 25.17% | 25.17% | 25.17% | 25.17% |
| Expected income tax expense | ₨ 216,833.8 | $ 2,538.1 | ₨ 177,549.9 | ₨ 166,708.3 |
| Adjustments to reconcile expected income tax to actual tax expense | ||||
| Interest on income tax refund | (6,452.8) | (75.5) | (4,125.0) | (2,204.9) |
| Stock-based compensation | 1,427.1 | 16.7 | (10,645.6) | 1,645.9 |
| Income subject to rates other than the statutory income tax rate | (910.8) | (10.7) | (1,262.0) | (6.8) |
| Remeasurement of deferred taxes for investment in subsidiaries and affiliates | (11,503.2) | (134.6) | ||
| Special reserve deduction | (8,053.7) | (94.3) | (5,143.2) | |
| Unrecognized tax benefit of earlier years including consequential tax credit pursuant to favourable orders received recognised | (16,515.6) | (193.3) | (80,874.4) | |
| Other, net | 190.1 | 2.2 | 2,327.4 | (25.1) |
| Income tax expense | ₨ 175,014.9 | $ 2,048.6 | ₨ 77,827.1 | ₨ 166,117.4 |
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- Definition Effective income tax reconciliation on share based compensation. No definition available.
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- Definition Effective income tax reconciliation transfer to special reserve amount. No definition available.
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- Definition Effective income tax reconciliation unrecognized tax benefit of earlier years reversed including consequential tax credit as per favorable orders. No definition available.
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- Definition Interest On Income Tax Refund net of tax. No definition available.
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- Definition Reconciliation of Estimated Income Taxes to Income Tax Expense as Reported [Line Items] No definition available.
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other deductions. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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