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Balances Payable to Related Parties (Detail) ₨ in Millions, $ in Millions	Mar. 31, 2022 INR (₨)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 INR (₨)
Related Party Transaction [Line Items]
Balances in non-interest-bearing deposits	₨ 2,382,052.2	$ 31,396.5	₨ 2,110,762.4
Balances in interest-bearing deposits	13,197,979.7	173,955.2	11,226,467.8
Principal Owner
Related Party Transaction [Line Items]
Balances in non-interest-bearing deposits	20,695.1		31,834.6
Balances in interest-bearing deposits	6,719.8		3,772.1
Accrued expenses and other liabilities	641.4		1,110.5
Total	28,056.3		36,717.2
Others
Related Party Transaction [Line Items]
Balances in non-interest-bearing deposits	6,273.0		9,732.0
Balances in interest-bearing deposits	875.0		1,830.5
Accrued expenses and other liabilities	0.0		0.0
Total	7,148.0		11,562.5
Related Party
Related Party Transaction [Line Items]
Balances in non-interest-bearing deposits	26,968.1	355.5	41,566.6
Balances in interest-bearing deposits	7,594.8	100.1	5,602.6
Accrued expenses and other liabilities	641.4	8.5	1,110.5
Total	₨ 35,204.3	$ 464.1	₨ 48,279.7

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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.

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