v3.26.1
Insurance services - Summary of Information About the Direct and Assumed Liability for Future Policy Benefits (Detail)
₨ in Millions, $ in Millions
 12 Months Ended
Mar. 31, 2026
INR (₨)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
INR (₨)
Mar. 31, 2026
USD ($)
Present value of expected net premium        
Beginning balance ₨ 514,481.0 $ 5,483.1 ₨ 389,573.3  
Beginning balance 509,775.2 5,433.0 390,691.8  
Effect of changes in cash flow assumptions (30,949.6)   (2,382.8) $ (329.8)
Effect of actuarial variances from expected experience 8,152.6   (3,751.9) 86.9
Adjusted Balance 486,978.2   384,557.1 5,190.1
Issuances 249,599.1 2,660.1 288,766.6  
Interest accrual 46,790.4 498.7 43,984.0  
Net premium collected (232,786.9) (2,480.9) (207,532.5)  
Ending balance 550,580.8 5,868.0 509,775.2  
Effect of changes in discount rate assumptions (5,114.3)   4,705.8 (54.5)
Ending balance 545,466.5 5,813.5 514,481.0  
Present value of Expected Future Policy Benefits        
Beginning balance 2,290,833.3 24,414.7 1,913,936.5  
Beginning balance 2,188,515.3 23,324.3 1,879,922.8  
Effect of changes in cash flow assumptions (36,165.8)   (2,955.3) (385.4)
Effect of actuarial variances from expected experience 5,901.2   (5,376.3) 62.9
Adjusted Balance 2,158,250.7   1,871,591.2 23,001.8
Issuances 250,074.4 2,665.2 288,575.8  
Interest accrual 176,070.0 1,876.5 159,631.8  
Benefits Payments (134,551.6) (1,434.0) (131,283.5)  
Ending balance 2,449,843.5 26,109.5 2,188,515.3  
Effect of changes in discount rate assumptions (97,597.8)   102,318.0 (1,040.2)
Ending balance 2,352,245.7 $ 25,069.3 2,290,833.3  
Present value of expected claims expenses 1,531.5   1,284.9 16.3
Net liability for future policy benefits 1,808,310.7   1,777,637.2 19,272.1
Deferred profit liability 430,430.5   272,614.0 4,587.4
Other global reserves 38,840.4   37,352.6 413.9
Total liability for future policy benefits and DPL for March 31 2,277,581.6   2,087,603.8 24,273.4
Less: Reinsurance recoverable 93,277.7   104,199.1 994.1
Net liability for future policy benefits, net of reinsurance 2,184,303.9   1,983,404.7 23,279.3
Undiscounted- Expected future benefit payments 7,666,840.1   7,096,963.9 81,709.9
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 2,352,245.7   2,290,833.3 25,069.3
Undiscounted-Expected future gross premiums 1,642,875.5   1,585,752.6 17,509.1
Discounted-Expected future gross premiums ₨ 1,233,216.9   ₨ 1,211,646.0 $ 13,143.1
Weighted - average duration of the liability (in years) 8 years 6 months   9 years 2 months 4 days 8 years 6 months
Weighted - average interest accretion (original locked-in) rate 7.50%   7.70% 7.50%
Weighted-average current discount rate at balance sheet date 7.50%   7.00% 7.50%
Non Par Protection [Member]        
Present value of expected net premium        
Beginning balance ₨ 93,515.7   ₨ 58,562.2  
Beginning balance 91,522.2   58,388.2  
Effect of changes in cash flow assumptions (9,625.2)   11,055.5  
Effect of actuarial variances from expected experience (1,157.4)   (2,165.2)  
Adjusted Balance 80,739.6   67,278.5  
Issuances 37,750.1   30,918.5  
Interest accrual 8,275.2   6,994.8  
Net premium collected (16,939.2)   (13,669.6)  
Ending balance 109,825.7   91,522.2  
Effect of changes in discount rate assumptions (2,211.4)   1,993.5  
Ending balance 107,614.3   93,515.7  
Present value of Expected Future Policy Benefits        
Beginning balance 274,125.9   216,689.5  
Beginning balance 258,350.9   210,473.8  
Effect of changes in cash flow assumptions (10,944.5)   9,381.8  
Effect of actuarial variances from expected experience (1,620.3)   (2,309.1)  
Adjusted Balance 245,786.1   217,546.5  
Issuances 37,915.2   30,874.5  
Interest accrual 20,892.9   18,482.6  
Benefits Payments (8,293.1)   (8,552.7)  
Ending balance 296,301.1   258,350.9  
Effect of changes in discount rate assumptions (20,259.4)   15,775.0  
Ending balance 276,041.7   274,125.9  
Present value of expected claims expenses 294.7   324.4  
Net liability for future policy benefits 168,722.1   180,934.6  
Deferred profit liability 23,580.5   14,053.0  
Other global reserves 2,612.9   2,575.2  
Total liability for future policy benefits and DPL for March 31 194,915.5   197,562.8  
Less: Reinsurance recoverable 76,403.2   84,794.7  
Net liability for future policy benefits, net of reinsurance 118,512.3   112,768.1  
Undiscounted- Expected future benefit payments 1,473,783.9   1,357,592.1  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 276,041.7   274,125.9  
Undiscounted-Expected future gross premiums 403,841.9   350,474.6  
Discounted-Expected future gross premiums ₨ 231,111.4   ₨ 205,841.6  
Weighted - average duration of the liability (in years) 12 years 8 months 12 days   13 years 7 months 6 days 12 years 8 months 12 days
Weighted - average interest accretion (original locked-in) rate 7.40%   7.70% 7.40%
Weighted-average current discount rate at balance sheet date 7.70%   7.00% 7.70%
Non Par Riders [Member]        
Present value of expected net premium        
Beginning balance ₨ 1,695.2   ₨ 1,146.5  
Beginning balance 1,678.2   1,149.1  
Effect of changes in cash flow assumptions 0.0   0.0  
Effect of actuarial variances from expected experience 2,181.9   (307.1)  
Adjusted Balance 3,860.1   842.0  
Issuances 249.8   1,126.3  
Interest accrual 290.7   137.7  
Net premium collected (484.1)   (427.8)  
Ending balance 3,916.5   1,678.2  
Effect of changes in discount rate assumptions (52.5)   17.0  
Ending balance 3,864.0   1,695.2  
Present value of Expected Future Policy Benefits        
Beginning balance 2,006.5   1,308.4  
Beginning balance 1,964.6   1,303.7  
Effect of changes in cash flow assumptions 0.0   0.0  
Effect of actuarial variances from expected experience 2,142.2   (372.2)  
Adjusted Balance 4,106.8   931.5  
Issuances 251.5   1,111.9  
Interest accrual 318.5   150.4  
Benefits Payments (277.4)   (229.2)  
Ending balance 4,399.4   1,964.6  
Effect of changes in discount rate assumptions (150.7)   41.9  
Ending balance 4,248.7   2,006.5  
Present value of expected claims expenses 52.2   43.0  
Net liability for future policy benefits 436.9   354.3  
Deferred profit liability 91.6   59.0  
Other global reserves (473.8)   (323.6)  
Total liability for future policy benefits and DPL for March 31 54.7   89.7  
Less: Reinsurance recoverable (48.3)   (69.9)  
Net liability for future policy benefits, net of reinsurance 103.0   159.6  
Undiscounted- Expected future benefit payments 8,103.4   3,683.8  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 4,248.7   2,006.5  
Undiscounted-Expected future gross premiums 15,415.2   6,702.3  
Discounted-Expected future gross premiums ₨ 11,693.3   ₨ 5,043.1  
Weighted - average duration of the liability (in years) 8 years 4 months 24 days   9 years 8 months 12 days 8 years 4 months 24 days
Weighted - average interest accretion (original locked-in) rate 7.50%   7.80% 7.50%
Weighted-average current discount rate at balance sheet date 7.80%   7.10% 7.80%
Non Par Savings [Member]        
Present value of expected net premium        
Beginning balance ₨ 356,937.5   ₨ 292,140.3  
Beginning balance 354,664.8   293,322.3  
Effect of changes in cash flow assumptions (16,206.4)   (7,969.2)  
Effect of actuarial variances from expected experience 7,936.5   2,724.7  
Adjusted Balance 346,394.9   288,077.8  
Issuances 78,207.3   141,305.7  
Interest accrual 28,146.3   29,187.9  
Net premium collected (107,928.1)   (103,906.6)  
Ending balance 344,820.4   354,664.8  
Effect of changes in discount rate assumptions (2,055.7)   2,272.7  
Ending balance 342,764.7   356,937.5  
Present value of Expected Future Policy Benefits        
Beginning balance 1,028,214.3   810,691.9  
Beginning balance 973,848.1   792,701.7  
Effect of changes in cash flow assumptions (15,972.7)   (8,475.8)  
Effect of actuarial variances from expected experience 7,957.2   3,149.9  
Adjusted Balance 965,832.6   787,375.8  
Issuances 78,158.7   141,235.0  
Interest accrual 77,108.6   69,530.5  
Benefits Payments (24,513.7)   (24,293.2)  
Ending balance 1,096,586.2   973,848.1  
Effect of changes in discount rate assumptions (45,486.2)   54,366.2  
Ending balance 1,051,100.0   1,028,214.3  
Present value of expected claims expenses 320.5   224.8  
Net liability for future policy benefits 708,655.8   671,501.6  
Deferred profit liability 99,049.2   66,070.8  
Other global reserves 5,745.3   3,197.1  
Total liability for future policy benefits and DPL for March 31 813,450.3   740,769.5  
Less: Reinsurance recoverable 134.3   38.1  
Net liability for future policy benefits, net of reinsurance 813,316.0   740,731.4  
Undiscounted- Expected future benefit payments 3,481,453.3   3,307,089.8  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 1,051,100.0   1,028,214.3  
Undiscounted-Expected future gross premiums 651,730.8   696,236.3  
Discounted-Expected future gross premiums ₨ 527,939.7   ₨ 564,231.6  
Weighted - average duration of the liability (in years) 9 years 3 months 18 days   10 years 1 month 6 days 9 years 3 months 18 days
Weighted - average interest accretion (original locked-in) rate 7.50%   7.70% 7.50%
Weighted-average current discount rate at balance sheet date 7.50%   7.10% 7.50%
Non Par Pension [Member]        
Present value of expected net premium        
Beginning balance ₨ 2,973.3   ₨ 1,571.2  
Beginning balance 2,953.7   1,577.5  
Effect of changes in cash flow assumptions (10.2)   (48.7)  
Effect of actuarial variances from expected experience 1,701.1   108.9  
Adjusted Balance 4,644.6   1,637.7  
Issuances 3,815.8   1,952.9  
Interest accrual 576.0   247.7  
Net premium collected (1,772.9)   (884.6)  
Ending balance 7,263.5   2,953.7  
Effect of changes in discount rate assumptions (59.0)   19.6  
Ending balance 7,204.5   2,973.3  
Present value of Expected Future Policy Benefits        
Beginning balance 14,720.6   13,191.0  
Beginning balance 14,487.4   13,219.9  
Effect of changes in cash flow assumptions (11.1)   79.3  
Effect of actuarial variances from expected experience 1,693.4   110.8  
Adjusted Balance 16,169.7   13,410.0  
Issuances 3,815.0   1,952.4  
Interest accrual 1,445.5   1,098.8  
Benefits Payments (1,923.6)   (1,973.8)  
Ending balance 19,506.6   14,487.4  
Effect of changes in discount rate assumptions (586.3)   233.2  
Ending balance 18,920.3   14,720.6  
Present value of expected claims expenses 3.8   2.9  
Net liability for future policy benefits 11,719.6   11,750.2  
Deferred profit liability 707.8   394.3  
Other global reserves 5,921.3   5,842.1  
Total liability for future policy benefits and DPL for March 31 18,348.7   17,986.6  
Less: Reinsurance recoverable 0.0   0.0  
Net liability for future policy benefits, net of reinsurance 18,348.7   17,986.6  
Undiscounted- Expected future benefit payments 38,397.9   22,662.1  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 18,920.3   14,720.6  
Undiscounted-Expected future gross premiums 12,028.1   5,904.9  
Discounted-Expected future gross premiums ₨ 9,739.3   ₨ 4,830.4  
Weighted - average duration of the liability (in years) 7 years 2 months 12 days   5 years 1 month 6 days 7 years 2 months 12 days
Weighted - average interest accretion (original locked-in) rate 7.50%   7.70% 7.50%
Weighted-average current discount rate at balance sheet date 7.70%   7.10% 7.70%
Individual Annuity [Member]        
Present value of expected net premium        
Beginning balance ₨ 14,128.7   ₨ 8,156.7  
Beginning balance 14,055.3   8,152.4  
Effect of changes in cash flow assumptions (2,505.7)   (100.7)  
Effect of actuarial variances from expected experience 846.1   (508.6)  
Adjusted Balance 12,395.7   7,543.1  
Issuances 49,854.3   48,569.1  
Interest accrual 2,708.5   2,602.7  
Net premium collected (49,811.8)   (44,659.6)  
Ending balance 15,146.7   14,055.3  
Effect of changes in discount rate assumptions (64.3)   73.4  
Ending balance 15,082.4   14,128.7  
Present value of Expected Future Policy Benefits        
Beginning balance 315,596.7   257,132.1  
Beginning balance 301,226.2   250,732.6  
Effect of changes in cash flow assumptions (3,521.3)   224.4  
Effect of actuarial variances from expected experience 877.1   (1,014.0)  
Adjusted Balance 298,582.0   249,943.0  
Issuances 50,295.8   48,565.1  
Interest accrual 25,894.1   22,540.7  
Benefits Payments (24,291.0)   (19,822.6)  
Ending balance 350,480.9   301,226.2  
Effect of changes in discount rate assumptions (13,013.5)   14,370.5  
Ending balance 337,467.4   315,596.7  
Present value of expected claims expenses 40.5   37.7  
Net liability for future policy benefits 322,425.5   301,505.7  
Deferred profit liability 24,094.9   16,012.0  
Other global reserves 3,309.7   2,242.7  
Total liability for future policy benefits and DPL for March 31 349,830.1   319,760.4  
Less: Reinsurance recoverable 0.0   0.0  
Net liability for future policy benefits, net of reinsurance 349,830.1   319,760.4  
Undiscounted- Expected future benefit payments 1,016,758.6   899,460.7  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 337,467.4   315,596.7  
Undiscounted-Expected future gross premiums 25,006.9   27,679.8  
Discounted-Expected future gross premiums ₨ 22,171.3   ₨ 24,273.8  
Weighted - average duration of the liability (in years) 8 years 10 months 24 days   9 years 6 months 8 years 10 months 24 days
Weighted - average interest accretion (original locked-in) rate 7.50%   7.70% 7.50%
Weighted-average current discount rate at balance sheet date 7.50%   7.00% 7.50%
Individual Health [Member]        
Present value of expected net premium        
Beginning balance ₨ 361.3   ₨ 740.6  
Beginning balance 357.4   742.4  
Effect of changes in cash flow assumptions 0.0   0.0  
Effect of actuarial variances from expected experience 270.8   (331.1)  
Adjusted Balance 628.2   411.3  
Issuances 14.9   29.3  
Interest accrual 42.0   29.0  
Net premium collected (152.9)   (112.2)  
Ending balance 532.2   357.4  
Effect of changes in discount rate assumptions (2.6)   3.9  
Ending balance 529.6   361.3  
Present value of Expected Future Policy Benefits        
Beginning balance 585.0   1,091.4  
Beginning balance 574.2   1,091.3  
Effect of changes in cash flow assumptions 0.0   0.0  
Effect of actuarial variances from expected experience 396.6   (411.6)  
Adjusted Balance 970.8   679.7  
Issuances 14.9   29.2  
Interest accrual 69.5   47.2  
Benefits Payments (111.6)   (181.9)  
Ending balance 943.6   574.2  
Effect of changes in discount rate assumptions (7.1)   10.8  
Ending balance 936.5   585.0  
Present value of expected claims expenses 0.1   0.1  
Net liability for future policy benefits 407.0   223.8  
Deferred profit liability 0.2   0.2  
Other global reserves 54.4   51.4  
Total liability for future policy benefits and DPL for March 31 461.6   275.4  
Less: Reinsurance recoverable 89.8   (20.0)  
Net liability for future policy benefits, net of reinsurance 371.8   295.4  
Undiscounted- Expected future benefit payments 1,485.9   908.7  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 936.5   585.0  
Undiscounted-Expected future gross premiums 1,495.9   1,639.8  
Discounted-Expected future gross premiums ₨ 1,100.0   ₨ 1,214.1  
Weighted - average duration of the liability (in years) 5 years 3 months 18 days   5 years 9 months 18 days 5 years 3 months 18 days
Weighted - average interest accretion (original locked-in) rate 7.40%   7.70% 7.40%
Weighted-average current discount rate at balance sheet date 7.40%   7.00% 7.40%
Par Life [Member]        
Present value of expected net premium        
Beginning balance ₨ 42,236.0   ₨ 25,635.6  
Beginning balance 41,891.9   25,732.8  
Effect of changes in cash flow assumptions (4,635.0)   (6,439.3)  
Effect of actuarial variances from expected experience 1,417.2   1,137.5  
Adjusted Balance 38,674.1   20,431.0  
Issuances 34,021.1   29,265.9  
Interest accrual 4,925.3   3,450.6  
Net premium collected (15,892.3)   (11,255.6)  
Ending balance 61,728.2   41,891.9  
Effect of changes in discount rate assumptions (645.3)   344.1  
Ending balance 61,082.9   42,236.0  
Present value of Expected Future Policy Benefits        
Beginning balance 555,367.0   519,920.1  
Beginning balance 538,762.5   516,261.8  
Effect of changes in cash flow assumptions (8,725.1)   (5,378.3)  
Effect of actuarial variances from expected experience 2,213.9   1,701.0  
Adjusted Balance 532,251.3   512,584.5  
Issuances 33,940.4   29,209.7  
Interest accrual 40,992.4   39,452.0  
Benefits Payments (41,945.1)   (42,483.7)  
Ending balance 565,239.0   538,762.5  
Effect of changes in discount rate assumptions (16,721.5)   16,604.5  
Ending balance 548,517.5   555,367.0  
Present value of expected claims expenses 812.2   647.3  
Net liability for future policy benefits 488,246.8   513,778.3  
Deferred profit liability 210,326.8   136,074.4  
Other global reserves 6,256.2   4,320.6  
Total liability for future policy benefits and DPL for March 31 704,829.8   654,173.3  
Less: Reinsurance recoverable 10,155.9   14,114.1  
Net liability for future policy benefits, net of reinsurance 694,673.9   640,059.2  
Undiscounted- Expected future benefit payments 1,486,940.0   1,375,202.6  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 548,517.5   555,367.0  
Undiscounted-Expected future gross premiums 516,679.6   487,422.0  
Discounted-Expected future gross premiums ₨ 414,913.8   ₨ 398,173.3  
Weighted - average duration of the liability (in years) 8 years 6 months   8 years 9 months 18 days 8 years 6 months
Weighted - average interest accretion (original locked-in) rate 7.40%   7.70% 7.40%
Weighted-average current discount rate at balance sheet date 7.50%   7.00% 7.50%
Par Pension [Member]        
Present value of expected net premium        
Beginning balance ₨ 4,447.1   ₨ 1,613.3  
Beginning balance 4,425.0   1,620.3  
Effect of changes in cash flow assumptions 259.7   1,103.9  
Effect of actuarial variances from expected experience 28.2   145.3  
Adjusted Balance 4,712.9   2,869.5  
Issuances 10,115.3   2,824.1  
Interest accrual 831.5   376.8  
Net premium collected (6,182.5)   (1,645.4)  
Ending balance 9,477.2   4,425.0  
Effect of changes in discount rate assumptions (47.4)   22.1  
Ending balance 9,429.8   4,447.1  
Present value of Expected Future Policy Benefits        
Beginning balance 19,801.3   17,757.6  
Beginning balance 19,524.3   17,795.1  
Effect of changes in cash flow assumptions 432.8   525.1  
Effect of actuarial variances from expected experience 133.8   201.6  
Adjusted Balance 20,090.9   18,521.8  
Issuances 10,112.4   2,823.3  
Interest accrual 2,161.4   1,517.1  
Benefits Payments (3,801.9)   (3,337.9)  
Ending balance 28,562.8   19,524.3  
Effect of changes in discount rate assumptions (758.0)   277.0  
Ending balance 27,804.8   19,801.3  
Present value of expected claims expenses 7.5   4.7  
Net liability for future policy benefits 18,382.5   15,358.9  
Deferred profit liability 2,293.0   388.8  
Other global reserves 156.6   130.3  
Total liability for future policy benefits and DPL for March 31 20,832.1   15,878.0  
Less: Reinsurance recoverable 0.0   0.0  
Net liability for future policy benefits, net of reinsurance 20,832.1   15,878.0  
Undiscounted- Expected future benefit payments 47,631.2   28,880.6  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 27,804.8   19,801.3  
Undiscounted-Expected future gross premiums 16,439.7   9,472.3  
Discounted-Expected future gross premiums ₨ 14,418.6   ₨ 7,912.5  
Weighted - average duration of the liability (in years) 5 years   4 years 4 months 24 days 5 years
Weighted - average interest accretion (original locked-in) rate 7.50%   7.70% 7.50%
Weighted-average current discount rate at balance sheet date 7.40%   7.20% 7.40%
Group Non par Life [Member]        
Present value of expected net premium        
Beginning balance ₨ 1,813.8   ₨ 6.9  
Beginning balance 1,773.3   6.8  
Effect of changes in cash flow assumptions 1,773.2   15.7  
Effect of actuarial variances from expected experience (5,071.8)   (4,556.3)  
Adjusted Balance (5,071.9)   (4,533.8)  
Issuances 35,570.5   32,774.8  
Interest accrual 994.9   956.8  
Net premium collected (33,623.1)   (30,971.1)  
Ending balance 2,129.6   1,773.3  
Effect of changes in discount rate assumptions 23.9   (40.5)  
Ending balance 2,105.7   1,813.8  
Present value of Expected Future Policy Benefits        
Beginning balance 80,416.0   76,154.5  
Beginning balance 79,777.1   76,342.9  
Effect of changes in cash flow assumptions 2,576.1   688.2  
Effect of actuarial variances from expected experience (7,892.7)   (6,432.7)  
Adjusted Balance 74,460.5   70,598.4  
Issuances 35,570.5   32,774.7  
Interest accrual 7,187.1   6,812.5  
Benefits Payments (29,394.2)   (30,408.5)  
Ending balance 87,823.9   79,777.1  
Effect of changes in discount rate assumptions (615.1)   638.9  
Ending balance 87,208.8   80,416.0  
Present value of expected claims expenses 0.0   0.0  
Net liability for future policy benefits 89,314.5   82,229.8  
Deferred profit liability 70,286.5   39,561.5  
Other global reserves 15,257.8   19,316.8  
Total liability for future policy benefits and DPL for March 31 174,858.8   141,108.1  
Less: Reinsurance recoverable 6,542.8   5,342.1  
Net liability for future policy benefits, net of reinsurance 168,316.0   135,766.0  
Undiscounted- Expected future benefit payments 112,285.9   101,483.5  
Discounted- Expected future benefit payments (at current discount rate at balance sheet date) 87,208.8   80,416.0  
Undiscounted-Expected future gross premiums 237.4   220.6  
Discounted-Expected future gross premiums ₨ 129.5   ₨ 125.6  
Weighted - average duration of the liability (in years) 3 years 6 months   3 years 6 months 3 years 6 months
Weighted - average interest accretion (original locked-in) rate 7.50%   7.80% 7.50%
Weighted-average current discount rate at balance sheet date 7.50%   7.30% 7.50%