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Loan Delinquency and Non-Accrual Loans (Detail) ₨ in Millions, $ in Millions	Mar. 31, 2015 INR (₨)	Mar. 31, 2015 USD ($)	Mar. 31, 2014 INR (₨)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	₨ 3,943,449.1	$ 63,287.5	₨ 3,228,261.3
Retail Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,720,988.5	43,668.5	2,188,337.7
Retail Loans | Consumer Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	486,251.7	7,803.8	407,811.6
Retail Loans | Personal loans/Credit card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	449,381.7	7,212.0	347,393.8
Retail Loans | Retail Business Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	660,456.7	10,599.5	519,472.2
Retail Loans | Commercial vehicle and construction equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	305,995.4	4,910.9	280,372.2
Retail Loans | Housing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	241,368.8	3,873.7	193,180.5
Retail Loans | Other Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	577,534.2	9,268.6	440,107.4
Wholesale loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,222,460.6	19,619.0	1,039,923.6
Financing Receivable, 31 to 90 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	21,959.6	352.4	21,065.7
Financing Receivable, 31 to 90 Days Past Due | Retail Loans | Consumer Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,448.7		2,326.2
Financing Receivable, 31 to 90 Days Past Due | Retail Loans | Personal loans/Credit card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,361.1		1,940.5
Financing Receivable, 31 to 90 Days Past Due | Retail Loans | Retail Business Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	5,262.5		3,815.1
Financing Receivable, 31 to 90 Days Past Due | Retail Loans | Commercial vehicle and construction equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	5,389.7		7,500.8
Financing Receivable, 31 to 90 Days Past Due | Retail Loans | Housing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	68.7		83.2
Financing Receivable, 31 to 90 Days Past Due | Retail Loans | Other Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	5,184.2		3,947.7
Financing Receivable, 31 to 90 Days Past Due | Wholesale loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,244.7		1,452.2
Impaired / 91 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	39,324.8	631.1	29,686.5
Impaired / 91 days or more past due | Retail Loans | Consumer Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,718.7		1,845.2
Impaired / 91 days or more past due | Retail Loans | Personal loans/Credit card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,648.4		1,984.4
Impaired / 91 days or more past due | Retail Loans | Retail Business Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	10,012.5		7,104.6
Impaired / 91 days or more past due | Retail Loans | Commercial vehicle and construction equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	5,559.4		6,207.8
Impaired / 91 days or more past due | Retail Loans | Housing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	242.7		205.8
Impaired / 91 days or more past due | Retail Loans | Other Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	4,653.5		3,580.5
Impaired / 91 days or more past due | Wholesale loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	13,489.6		8,758.2
Total current or less than 31 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	3,882,164.7	$ 62,304.0	3,177,509.1
Total current or less than 31 days past due | Retail Loans | Consumer Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	481,084.3		403,640.2
Total current or less than 31 days past due | Retail Loans | Personal loans/Credit card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	444,372.2		343,468.9
Total current or less than 31 days past due | Retail Loans | Retail Business Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	645,181.7		508,552.5
Total current or less than 31 days past due | Retail Loans | Commercial vehicle and construction equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	295,046.3		266,663.6
Total current or less than 31 days past due | Retail Loans | Housing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	241,057.4		192,891.5
Total current or less than 31 days past due | Retail Loans | Other Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	567,696.5		432,579.2
Total current or less than 31 days past due | Wholesale loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	₨ 1,207,726.3		₨ 1,029,713.2

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 45



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 4



-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524

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