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Investments in Affiliates (Detail) - Softcell Technologies Limited (''Softcell'') ₨ in Millions | 12 Months Ended
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Mar. 31, 2019 INR (₨)
Investments in and Advances to Affiliates [Line Items] |
Type of Business | Business-to-business software services
HDFC Bank Limited and subsidiaries Investment | ₨ 30.3
HDFC Bank Limited and Subsidiaries Ownership | 14.00%
HDFC Group Ownership |
Investments in and Advances to Affiliates [Line Items] |
HDFC Bank Limited and Subsidiaries Ownership | 26.00%

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