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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999

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Significant Transactions with Related Parties Included in Determination of Net Income (Detail) ₨ in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2017 INR (₨)	Mar. 31, 2017 USD ($)	Mar. 31, 2016 INR (₨)	Mar. 31, 2015 INR (₨)
Related Party Transaction [Line Items]
Interest expense-Deposits	₨ (173.4)	$ (2.7)	₨ (285.3)	₨ (300.8)
Non-Interest Revenue-Fees and Commissions
Related Party Transaction [Line Items]
Related party transaction revenues	12,430.9	191.7	11,366.4	8,552.5
Interest and Dividend
Related Party Transaction [Line Items]
Related party transaction revenues	37.2	0.6	22.9	73.4
Administrative and other expense
Related Party Transaction [Line Items]
Related party transaction non-interest expense	(4,987.9)	(76.9)	(3,794.7)	(2,400.9)
Premises and equipment expense
Related Party Transaction [Line Items]
Related party transaction non-interest expense	(33.0)	$ (0.5)	(28.1)	(27.6)
Principal Owner
Related Party Transaction [Line Items]
Interest expense-Deposits	(55.7)		(72.5)	(76.0)
Principal Owner \| Non-Interest Revenue-Fees and Commissions
Related Party Transaction [Line Items]
Related party transaction revenues	2,074.5		1,788.3	1,443.7
Principal Owner \| Interest and Dividend
Related Party Transaction [Line Items]
Related party transaction revenues	0.0		0.0	0.0
Principal Owner \| Administrative and other expense
Related Party Transaction [Line Items]
Related party transaction non-interest expense	(3,405.7)		(2,451.6)	(1,377.9)
Principal Owner \| Premises and equipment expense
Related Party Transaction [Line Items]
Related party transaction non-interest expense	(25.3)		(20.5)	(20.4)
Others
Related Party Transaction [Line Items]
Interest expense-Deposits	(117.7)		(212.8)	(224.8)
Others \| Non-Interest Revenue-Fees and Commissions
Related Party Transaction [Line Items]
Related party transaction revenues	10,356.4		9,578.1	7,108.8
Others \| Interest and Dividend
Related Party Transaction [Line Items]
Related party transaction revenues	37.2		22.9	73.4
Others \| Administrative and other expense
Related Party Transaction [Line Items]
Related party transaction non-interest expense	(1,582.2)		(1,343.1)	(1,023.0)
Others \| Premises and equipment expense
Related Party Transaction [Line Items]
Related party transaction non-interest expense	₨ (7.7)		₨ (7.6)	₨ (7.2)