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Impaired Loans (Detail) ₨ in Millions, $ in Millions | Mar. 31, 2018 INR (₨) | Mar. 31, 2018 USD ($) | Mar. 31, 2017 INR (₨)
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans |  | ₨ 108,717.3 | $ 1,669.8 | ₨ 82,979.7
Wholesale Trade- Consumer Goods |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans |  | 15,239.0 | 234.1 | 15,722.9
Consumer Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans | [1] | 15,236.4 | 234.0 | 10,760.3
Iron and Steel |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans |  |  |  | 4,499.4
Agriculture Production - Food |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans |  | 12,227.0 | 187.8 | 4,217.1
Others (none greater than 5% of impaired loans) |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans |  | 46,544.5 | 714.9 | ₨ 47,780.0
Retail Trade |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans |  | 7,007.4 | 107.6 |
Agri-Allied |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans |  | 6,279.0 | 96.4 |
Food And Beverage |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Impaired loans |  | ₨ 6,184.0 | $ 95.0 |
[1] | Refer note 12 Concentrations of credit risk

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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
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