XML 113 R101.htm IDEA: XBRL DOCUMENT v3.20.2

Exposures to Ten Largest Borrowers Computed as per RBI Guidelines, Based on Higher of Outstanding Balance or Limit on Loans, Investments (Including Credit Substitutes) and Non-Funded Exposures (Detail) ₨ in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2020 INR (₨)	Mar. 31, 2020 USD ($)	Mar. 31, 2019 INR (₨)
Concentration Risk [Line Items]
Total Exposure	₨ 12,210,922.2	$ 161,969.9	₨ 10,532,317.6
Borrower 1
Concentration Risk [Line Items]
Total Exposure	244,582.8	3,244.2	152,598.3
Borrower 1 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	243,382.8		146,141.2
Borrower 1 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	1,200.0		6,457.1
Borrower 2
Concentration Risk [Line Items]
Total Exposure	180,405.1	2,393.0	142,578.4
Borrower 2 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	180,100.0		27,488.9
Borrower 2 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	305.1		115,089.5
Borrower 3
Concentration Risk [Line Items]
Total Exposure	164,349.6	2,180.0	120,317.1
Borrower 3 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	163,738.7		120,004.3
Borrower 3 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	610.9		312.8
Borrower 4
Concentration Risk [Line Items]
Total Exposure	149,853.6	1,987.7	93,471.4
Borrower 4 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	74,421.4		92,271.4
Borrower 4 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	75,432.2		1,200.0
Borrower 5
Concentration Risk [Line Items]
Total Exposure	135,455.0	1,796.7	80,041.1
Borrower 5 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	135,455.0		80,008.5
Borrower 5 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	0.0		32.6
Borrower 6
Concentration Risk [Line Items]
Total Exposure	87,586.0	1,161.8	72,447.9
Borrower 6 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	31,934.6		57,604.0
Borrower 6 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	55,651.4		14,843.9
Borrower 7
Concentration Risk [Line Items]
Total Exposure	78,583.2	1,042.4	67,754.9
Borrower 7 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	63,228.0		32,948.9
Borrower 7 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	15,355.2		34,806.0
Borrower 8
Concentration Risk [Line Items]
Total Exposure	75,257.5	998.2	66,446.8
Borrower 8 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	75,035.9		51,283.8
Borrower 8 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	221.6		15,163.0
Borrower 9
Concentration Risk [Line Items]
Total Exposure	75,210.5	997.6	66,115.6
Borrower 9 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	75,027.7		43,602.4
Borrower 9 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	182.8		22,513.2
Borrower 10
Concentration Risk [Line Items]
Total Exposure	73,489.4	$ 974.8	56,907.0
Borrower 10 | Funded Exposure
Concentration Risk [Line Items]
Total Exposure	51,361.3		30,559.1
Borrower 10 | Non-Funded Exposure
Concentration Risk [Line Items]
Total Exposure	₨ 22,128.1		₨ 26,347.9

X

- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611

+ Details

Name:	us-gaap_ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

No definition available.

+ Details

Name:	us-gaap_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=hdb_FundedExposureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=hdb_NonfundedExposureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerSixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerSevenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerNineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=hdb_BorrowerTenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: