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v3.21.2

Significant Transactions with Related Parties Included in Determination of Net Income (Detail) ₨ in Millions, $ in Millions | 12 Months Ended
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Mar. 31, 2021 INR (₨) | Mar. 31, 2021 USD ($) | Mar. 31, 2020 INR (₨) | Mar. 31, 2019 INR (₨)
Related Party Transaction [Line Items] |  |  |  |
Interest expense-Deposits | ₨ (279.3) | $ (3.8) | ₨ (169.5) | ₨ (192.9)
Non-Interest Revenue-Fees and Commissions |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction revenues | 23,048.1 | 315.1 | 20,091.1 | 17,388.0
Interest and Dividend Revenue |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction revenues | 552.5 | 7.6 | 1,194.2 | 1,901.7
Administrative and other expense |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction non-interest expense | (8,730.7) | (119.4) | (8,960.4) | (7,680.0)
Premises and equipment expense |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction non-interest expense | (29.5) | $ (0.4) | (35.5) | (37.3)
Principal Owner |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Interest expense-Deposits | (108.0) |  | (85.3) | (54.9)
Principal Owner | Non-Interest Revenue-Fees and Commissions |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction revenues | 3,246.5 |  | 3,089.4 | 2,829.7
Principal Owner | Interest and Dividend Revenue |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction revenues | 0.0 |  | 0.0 | 352.0
Principal Owner | Administrative and other expense |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction non-interest expense | (5,874.4) |  | (5,840.8) | (4,838.3)
Principal Owner | Premises and equipment expense |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction non-interest expense | (24.3) |  | (25.8) | (31.2)
Others |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Interest expense-Deposits | (171.3) |  | (84.2) | (138.0)
Others | Non-Interest Revenue-Fees and Commissions |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction revenues | 19,801.6 |  | 17,001.7 | 14,558.3
Others | Interest and Dividend Revenue |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction revenues | 552.5 |  | 1,194.2 | 1,549.7
Others | Administrative and other expense |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction non-interest expense | (2,856.3) |  | (3,119.6) | (2,841.7)
Others | Premises and equipment expense |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction non-interest expense | ₨ (5.2) |  | ₨ (9.7) | ₨ (6.1)

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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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