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Bank Overview - Additional Information (Detail) | 12 Months Ended
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Mar. 31, 2018
Housing Development Finance Corporation Limited |
Nature Of Business [Line Items] |
Equity ownership interest of the bank's largest shareholder, Housing Development Finance Corporation Limited and its subsidiaries | 20.90%

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- Definition Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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- Details
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