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v3.25.2

Insurance services - Summary of Balances of and Changes in Separate Account Liabilities (Detail) ₨ in Millions, $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 INR (₨) | Mar. 31, 2025 INR (₨) | Mar. 31, 2025 USD ($)
Separate Account, Liability [Line Items] |  |  |
Beginning Balance | ₨ 857,528.7 | ₨ 955,416.3 | $ 11,183.7
Premiums and deposits | 116,856.2 | 190,549.4 | 2,230.4
Policy Charges | (14,111.7) | (21,057.3) | (246.5)
Surrenders and withdrawals | (119,417.6) | (118,048.5) | (1,381.8)
Benefit Payments | (40,431.7) | (72,456.2) | (848.1)
Investment Performance | 158,152.0 | 86,785.5 | 1,015.8
Other Charges | (3,159.6) | (4,907.8) | (57.4)
Ending Balance | 955,416.3 | 1,016,281.4 | $ 11,896.1
Unit-Linked Life [Member] |  |  |
Separate Account, Liability [Line Items] |  |  |
Beginning Balance | 709,215.4 | 790,711.5 |
Premiums and deposits | 97,196.3 | 144,941.9 |
Policy Charges | (12,754.4) | (18,978.4) |
Surrenders and withdrawals | (104,102.3) | (93,686.8) |
Benefit Payments | (37,926.8) | (68,275.4) |
Investment Performance | 141,987.6 | 71,320.8 |
Other Charges | (2,904.3) | (4,473.8) |
Ending Balance | 790,711.5 | 821,559.8 |
Unit-Linked Pension [Member] |  |  |
Separate Account, Liability [Line Items] |  |  |
Beginning Balance | 55,986.3 | 55,596.3 |
Premiums and deposits | 3,556.3 | 7,515.3 |
Policy Charges | (594.4) | (789.3) |
Surrenders and withdrawals | (8,432.7) | (7,853.0) |
Benefit Payments | (2,504.9) | (4,180.8) |
Investment Performance | 7,709.9 | 4,643.4 |
Other Charges | (124.2) | (193.9) |
Ending Balance | 55,596.3 | 54,738.0 |
Group Linked [Member] |  |  |
Separate Account, Liability [Line Items] |  |  |
Beginning Balance | 92,327.0 | 109,108.5 |
Premiums and deposits | 16,103.6 | 38,092.2 |
Policy Charges | (762.9) | (1,289.6) |
Surrenders and withdrawals | (6,882.6) | (16,508.7) |
Benefit Payments | 0.0 | 0.0 |
Investment Performance | 8,454.5 | 10,821.3 |
Other Charges | (131.1) | (240.1) |
Ending Balance | ₨ 109,108.5 | ₨ 139,983.6 |

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