Percentage of capital acquired through amalgamation.

No definition available.

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
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-Name Accounting Standards Codification
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-Publisher FASB
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- Definition

Amount of cash outflow to acquire investments classified as other.

+ References

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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- Definition

Amount of cash inflow from the sale of investments classified as other.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

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Related Party Transactions - Additional Information (Detail) ₨ in Millions, $ in Millions		12 Months Ended
	Jul. 01, 2023	Mar. 31, 2026 INR (₨)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 INR (₨)	Mar. 31, 2024 INR (₨)	Mar. 31, 2026 USD ($)
Related Party Transaction [Line Items]
Purchase of investments from others		₨ 0.0		₨ 0.0
Sale of investments from others		5,753.3		10,131.7
Proceeds from issuance of long-term debt		860,672.1	$ 9,172.7	661,226.3	₨ 1,155,775.2
Bank guarantees		2,913,117.7		2,462,279.4		$ 31,046.8
Percentage of Capital Acquired through amalgamation	100.00%
Tier II bonds
Related Party Transaction [Line Items]
Proceeds from issuance of long-term debt		9,191.0		12,191.0
Principal Owner \| Property Plant and equipment
Related Party Transaction [Line Items]
Fixed assets purchased from related parties		0.0		2.9
Others
Related Party Transaction [Line Items]
Bank guarantees		₨ 2.5		₨ 2.5