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Segment information (Tables)

12 Months Ended

Mar. 31, 2018

Schedule of Segment Reporting Information, by Segment

Summarized segment information for the years ended March 31, 2016, March 31, 2017 and March 31, 2018:

		Fiscal years ended March 31,
		2016																2017
		Retail Banking				Wholesale Banking				Treasury Services				Total				Retail Banking				Wholesale Banking				Treasury Services				Total
		(In millions)
Net interest income/(expense) (External)		Rs.	143,024.7			Rs.	127,326.0			Rs.	22,010.8			Rs.	292,361.5			Rs.	188,803.6			Rs.	159,644.3			Rs.	3,347.7			Rs.	351,795.6
Net interest income/(expense) (Internal)			94,302.1				(88,187.6	)			(6,114.5	)			—				97,969.3				(100,757.5	)			2,788.2				—
Net interest revenue			237,326.8				39,138.4				15,896.3				292,361.5				286,772.9				58,886.8				6,135.9				351,795.6
Less: Provision for credit losses			19,103.0				2,428.3				—				21,531.3				31,341.7				6,609.7				—				37,951.4
Net interest revenue, after allowance for credit losses			218,223.8				36,710.1				15,896.3				270,830.2				255,431.2				52,277.1				6,135.9				313,844.2
Non-interest revenue			85,999.6				11,630.8				(796.5	)			96,833.9				95,914.4				11,090.1				3,321.6				110,326.1
Non-interest expense			(167,739.7	)			(13,149.2	)			(1,188.4	)			(182,077.3	)			(187,591.4	)			(15,352.0	)			(1,261.4	)			(204,204.8	)
Income before income tax		Rs.	136,483.7			Rs.	35,191.7			Rs.	13,911.4			Rs.	185,586.8			Rs.	163,754.2			Rs.	48,015.2			Rs.	8,196.1			Rs.	219,965.5
Income tax expense														Rs.	67,536.9															Rs.	79,224.9
Segment assets:
Segment total assets		Rs.	4,534,800.3			Rs.	2,741,500.9			Rs.	460,422.1			Rs.	7,736,723.3			Rs.	4,987,187.1			Rs.	3,346,273.0			Rs.	733,520.4			Rs.	9,066,980.5

		Fiscal year ended March 31
		2018
		Retail Banking				Wholesale Banking				Treasury Services				Total				Total
		(In millions)
Net interest income/(expense) (External)		Rs.	279,198.3			Rs.	120,341.3			Rs.	23,611.0			Rs.	423,150.6			US$	6,499.1
Net interest income/(expense) (Internal)			65,690.2				(48,571.1	)			(17,119.1	)			—				—
Net interest revenue			344,888.5				71,770.2				6,491.9				423,150.6				6,499.1
Less: Provision for credit losses			52,577.1				6,820.7				—				59,397.8				912.3
Net interest revenue, after allowance for credit losses			292,311.4				64,949.5				6,491.9				363,752.8				5,586.8
Non-interest revenue			122,582.6				12,674.1				9,350.3				144,607.0				2,221.0
Non-interest expense			(210,257.2	)			(19,792.1	)			(1,204.1	)			(231,253.4	)			(3,551.9	)
Income before income tax		Rs.	204,636.8			Rs.	57,831.5			Rs.	14,638.1			Rs.	277,106.4			US$	4,255.9
Income tax expense														Rs.	98,272.5			US$	1,509.3
Segment assets:
Segment total assets		Rs.	6,351,601.7			Rs.	4,140,606.7			Rs.	875,100.4			Rs.	11,367,308.8			US$	174,586.3

X

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599

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