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Grading Indicators Related to Bank's Retail Loans and Wholesale Loans (Detail) ₨ in Millions, $ in Millions | Mar. 31, 2017 INR (₨) | Mar. 31, 2017 USD ($) | Mar. 31, 2016 INR (₨)
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | ₨ 5,988,909.7 | $ 92,350.2 | ₨ 4,992,834.4
Wholesale loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 1,939,948.4 | 29,914.4 | 1,534,268.7
Wholesale loans | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 1,893,736.5 | 29,201.8 | 1,517,064.5
Wholesale loans | Labeled |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 15,936.2 | 245.7 | 1,644.5
Wholesale loans | Impaired |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 30,275.7 | 466.9 | 15,559.7
Retail Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 4,048,961.3 | 62,435.8 | 3,458,565.7
Retail Loans | Impaired |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 52,704.0 |  | 37,423.0
Retail Loans | Auto loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 720,657.8 | 11,112.7 | 589,010.3
Retail Loans | Auto loans | Impaired |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 6,105.6 |  | 4,494.5
Retail Loans | Personal loans/Credit card |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 841,806.8 | 12,980.8 | 626,152.2
Retail Loans | Personal loans/Credit card | Impaired |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 6,467.4 |  | 4,441.6
Retail Loans | Retail Business Banking |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 913,720.2 | 14,089.7 | 791,857.3
Retail Loans | Retail Business Banking | Impaired |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 21,060.1 |  | 15,486.0
Retail Loans | Commercial vehicle and construction equipment finance |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 460,365.2 | 7,098.9 | 369,992.4
Retail Loans | Commercial vehicle and construction equipment finance | Impaired |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 6,086.6 |  | 5,150.7
Retail Loans | Housing loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 383,866.9 | 5,919.3 | 318,692.0
Retail Loans | Housing loans | Impaired |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 1,678.2 |  | 1,068.6
Retail Loans | Other Retail |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 728,544.4 | 11,234.4 | 762,861.5
Retail Loans | Other Retail | Impaired |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 11,306.1 |  | 6,781.6
Performing |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 5,905,930.0 | $ 91,070.6 | 4,939,851.7
Performing | Retail Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 3,996,257.3 |  | 3,421,142.7
Performing | Retail Loans | Auto loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 714,552.2 |  | 584,515.8
Performing | Retail Loans | Personal loans/Credit card |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 835,339.4 |  | 621,710.6
Performing | Retail Loans | Retail Business Banking |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 892,660.1 |  | 776,371.3
Performing | Retail Loans | Commercial vehicle and construction equipment finance |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 454,278.6 |  | 364,841.7
Performing | Retail Loans | Housing loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | 382,188.7 |  | 317,623.4
Performing | Retail Loans | Other Retail |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivables | ₨ 717,238.3 |  | ₨ 756,079.9

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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 + Details
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