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Exposures to Ten Largest Borrowers Computed as per RBI Guidelines, Based on Higher of Outstanding Balance or Limit on Loans, Investments (Including Credit Substitutes) and Non-Funded Exposures (Detail) ₨ in Millions, $ in Millions | Mar. 31, 2017 INR (₨) | Mar. 31, 2017 USD ($) | Mar. 31, 2016 INR (₨)
--- | --- | --- | ---
Concentration Risk [Line Items] |  |  |
Total Exposure | ₨ 7,276,675.4 | $ 112,207.8 | ₨ 6,027,439.0
Borrower 1 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 106,885.0 | 1,648.2 | 108,364.2
Borrower 1 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 19,561.0 |  | 108,184.1
Borrower 1 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 87,324.0 |  | 180.1
Borrower 2 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 73,443.3 | 1,132.5 | 97,344.7
Borrower 2 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 54,388.2 |  | 30,964.7
Borrower 2 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 19,055.1 |  | 66,380.0
Borrower 3 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 65,040.1 | 1,002.9 | 75,112.6
Borrower 3 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 65,000.0 |  | 43,112.6
Borrower 3 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 40.1 |  | 32,000.0
Borrower 4 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 62,119.8 | 957.9 | 65,606.8
Borrower 4 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 33,472.8 |  | 51,398.8
Borrower 4 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 28,647.0 |  | 14,208.0
Borrower 5 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 58,598.7 | 903.6 | 65,017.1
Borrower 5 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 45,790.0 |  | 65,000.0
Borrower 5 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 12,808.7 |  | 17.1
Borrower 6 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 50,000.0 | 771.0 | 50,303.2
Borrower 6 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 50,000.0 |  | 31,714.8
Borrower 6 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 0.0 |  | 18,588.4
Borrower 7 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 40,000.0 | 616.8 | 41,569.8
Borrower 7 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 40,000.0 |  | 7,098.0
Borrower 7 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 0.0 |  | 34,471.8
Borrower 8 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 39,998.0 | 616.8 | 35,208.3
Borrower 8 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 19,071.8 |  | 5,030.7
Borrower 8 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 20,926.2 |  | 30,177.6
Borrower 9 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 35,984.2 | 554.9 | 35,000.0
Borrower 9 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 34,744.2 |  | 35,000.0
Borrower 9 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 1,240.0 |  | 0.0
Borrower 10 |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 35,945.8 | $ 554.3 | 34,213.9
Borrower 10 | Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | 7,502.1 |  | 33,549.0
Borrower 10 | Non-Funded Exposure |  |  |
Concentration Risk [Line Items] |  |  |
Total Exposure | ₨ 28,443.7 |  | ₨ 664.9

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- Definition Maximum amount of exposure due to credit risk that, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity. + References No definition available. + Details
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