The amount of Securities eligible for placement towards the Bank's Statutory Liquidity Ratio Requirements.

No definition available.

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- Definition

Amount of unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Description of the credit rating indicative of likelihood of repayment of the debt instrument given by a credit rating agency (for example, Standard and Poor's, Moody's, Fitch).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Amount of increase (decrease) in allowance for credit loss of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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-Section 50
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- Definition

Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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

No definition available.

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Investments, Available for Sale Debt Securities - Additional Information (Detail) ₨ in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2023 INR (₨)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 INR (₨)	Mar. 31, 2023 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Investments available for sale, at fair value, restricted investments	₨ 2,070,953.6		₨ 1,648,213.8	$ 25,197.1
Debt Securities, Available-for-sale, Unrealized Loss	95,971.1
Net allowance for credit losses	70.9	$ 0.9	(2,915.1)
Available-for-Sale Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale investments, amount eligible towards the Bank's statutory liquidity reserve requirements	4,199,442.3		3,622,643.8	51,094.3
Investments available for sale, at fair value, restricted investments	2,070,953.6		1,648,213.8	$ 25,197.1
Available-for-Sale Debt Securities \| Accounting Guidance [Member]
Schedule of Available-for-sale Securities [Line Items]
Net allowance for credit losses	70.9		₨ 0.0
HDB Debt Securities Other Than Asset And Mortgage Backed Securities \| Government Issued or Backed Securities
Schedule of Available-for-sale Securities [Line Items]
Net allowance for credit losses	₨ 0.0
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Average credit rating	AAA	AAA
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Average credit rating	AAA	AAA