This item represents the aggregate fair value of investments in Available for Sale Credit Substitute.

No definition available.

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- Definition

Amount of unfunded commitments for which the entity is obligated, including, but not limited to, financial standby letter of credit, value of guarantees, contracts that contingently require the guarantor to make payments or perform services.

+ References

No definition available.

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- Definition

Maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 50
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-Subparagraph (b)
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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/2009/role/commonPracticeRef
-Topic 275
-SubTopic 10
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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
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- Definition

Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
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Concentrations of Credit Risk (Detail) ₨ in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2026 INR (₨)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 INR (₨)	Mar. 31, 2026 USD ($)
Concentration Risk [Line Items]
Gross loans	₨ 31,588,195.4		₨ 28,638,811.1	$ 336,653.5
Fair value of credit substitutes	273,023.1		161,179.6	$ 2,909.8
Non-funded exposure	3,537,324.2		2,642,091.8
Total Exposure	₨ 35,398,542.7	$ 377,262.5	₨ 31,442,082.5
Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	100.00%	100.00%	100.00%
Consumer Loans
Concentration Risk [Line Items]
Gross loans	₨ 10,362,340.8		₨ 10,435,520.6
Fair value of credit substitutes	0.0		0.0
Non-funded exposure	16,463.3		252.5
Total Exposure	₨ 10,378,804.1	$ 110,612.9	₨ 10,435,773.1
Consumer Loans \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	29.30%	29.30%	33.30%
NBFC
Concentration Risk [Line Items]
Gross loans	₨ 1,737,107.5		₨ 1,650,812.6
Fair value of credit substitutes	108,870.6		50,076.1
Non-funded exposure	3,684.4		1,035.1
Total Exposure	₨ 1,849,662.5	$ 19,712.9	₨ 1,701,923.8
NBFC \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	5.20%	5.20%	5.40%
Retail Trade
Concentration Risk [Line Items]
Gross loans	₨ 1,224,106.4		₨ 1,107,102.6
Fair value of credit substitutes	0.0		0.0
Non-funded exposure	69,173.2		56,842.4
Total Exposure	₨ 1,293,279.6	$ 13,783.2	₨ 1,163,945.0
Retail Trade \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	3.70%	3.70%	3.70%
Real Estate & Property Services
Concentration Risk [Line Items]
Gross loans	₨ 1,238,509.5		₨ 1,168,287.2
Fair value of credit substitutes	0.0		0.0
Non-funded exposure	84,434.8		62,855.1
Total Exposure	₨ 1,322,944.3	$ 14,099.4	₨ 1,231,142.3
Real Estate & Property Services \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	3.70%	3.70%	3.90%
Consumer Services
Concentration Risk [Line Items]
Gross loans	₨ 1,124,050.8		₨ 1,017,874.2
Fair value of credit substitutes	2,908.2		0.0
Non-funded exposure	61,839.8		45,155.5
Total Exposure	₨ 1,188,798.8	$ 12,669.7	₨ 1,063,029.7
Consumer Services \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	3.40%	3.40%	3.40%
Power
Concentration Risk [Line Items]
Gross loans	₨ 874,751.5		₨ 769,686.4
Fair value of credit substitutes	29,326.0		24,160.8
Non-funded exposure	138,745.6		102,143.7
Total Exposure	₨ 1,042,823.1	$ 11,114.0	₨ 895,990.9
Power \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.90%	2.90%	2.80%
Food and Beverage
Concentration Risk [Line Items]
Gross loans	₨ 852,451.2		₨ 760,841.6
Fair value of credit substitutes	0.0		0.0
Non-funded exposure	65,554.0		59,838.4
Total Exposure	₨ 918,005.2	$ 9,783.7	₨ 820,680.0
Food and Beverage \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.60%	2.60%	2.60%
Road Transportation
Concentration Risk [Line Items]
Gross loans	₨ 1,009,463.1		₨ 815,518.6
Fair value of credit substitutes	0.0		0.0
Non-funded exposure	16,403.5		14,315.2
Total Exposure	₨ 1,025,866.6	$ 10,933.2	₨ 829,833.8
Road Transportation \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.90%	2.90%	2.60%
Others (none greater than 2%)
Concentration Risk [Line Items]
Gross loans	₨ 8,573,764.7		₨ 7,702,733.5
Fair value of credit substitutes	74,317.0		55,116.1
Non-funded exposure	1,973,464.9		1,501,008.6
Total Exposure	₨ 10,621,546.6	$ 113,199.9	₨ 9,258,858.2
Others (none greater than 2%) \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	29.90%	29.90%	29.50%
Wholesale Trade - Non-Industrial
Concentration Risk [Line Items]
Gross loans	₨ 819,812.7		₨ 643,909.8
Fair value of credit substitutes	1,420.4		0.0
Non-funded exposure	48,908.2		36,548.1
Total Exposure	₨ 870,141.3	$ 9,273.6	₨ 680,457.9
Wholesale Trade - Non-Industrial \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.50%	2.50%	2.20%
Wholesale Trade - Industrial
Concentration Risk [Line Items]
Gross loans	₨ 647,843.2		₨ 574,318.0
Fair value of credit substitutes	6,551.1		0.0
Non-funded exposure	124,146.2		101,287.4
Total Exposure	₨ 778,540.5	$ 8,297.4	₨ 675,605.4
Wholesale Trade - Industrial \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.20%	2.20%	2.10%
Infrastructure Development
Concentration Risk [Line Items]
Gross loans	₨ 517,943.2		₨ 362,910.9
Fair value of credit substitutes	22,725.5		8,937.8
Non-funded exposure	448,153.4		359,503.4
Total Exposure	₨ 988,822.1	$ 10,538.4	₨ 731,352.1
Infrastructure Development \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.80%	2.80%	2.30%
Engineering
Concentration Risk [Line Items]
Gross loans	₨ 543,030.4		₨ 447,424.3
Fair value of credit substitutes	0.0		2,484.2
Non-funded exposure	265,795.7		203,246.4
Total Exposure	₨ 808,826.1	$ 8,620.1	₨ 653,154.9
Engineering \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.30%	2.30%	2.10%
Agri-Allied
Concentration Risk [Line Items]
Gross loans	₨ 740,385.9		₨ 627,426.4
Fair value of credit substitutes	0.0		0.0
Non-funded exposure	6,026.1		5,066.2
Total Exposure	₨ 746,412.0	$ 7,954.9	₨ 632,492.6
Agri-Allied \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.10%	2.10%	2.00%
Iron and Steel
Concentration Risk [Line Items]
Gross loans	₨ 664,942.4		₨ 554,444.4
Fair value of credit substitutes	25,245.1		20,404.6
Non-funded exposure	106,578.9		92,993.8
Total Exposure	₨ 796,766.4	$ 8,491.6	₨ 667,842.8
Iron and Steel \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.30%	2.30%	2.10%
Business Services [Member]
Concentration Risk [Line Items]
Gross loans	₨ 657,692.1
Fair value of credit substitutes	1,659.2
Non-funded exposure	107,952.2
Total Exposure	₨ 767,303.5	$ 8,177.6
Business Services [Member] \| Lender Concentration Risk \| Concentration of Credit Risk by Industry
Concentration Risk [Line Items]
%	2.20%	2.20%