Significant estimates: Actuarial assumptions and sensitivity The significant actuarial assumptions were as follows: Particulars As at March 31, 2025 As at March 31, 2024 Discount rate 6.71% 7.17% Attrition rate 10.00% 14.00% Rate of return on plan assets 6.71% 7.17% Salary escalation rate 10.07% 10.36% Sensitivity analysis The sensitivity of the defined benefit obligation to changes in the weighted principal assumptions are: Particulars Change in assumptions Impact on defined benefit obligation Increase in assumptions Decrease in assumptions As at March 31, 2025 As at March 31, 2024 As at March 31, 2025 As at March 31, 2024 As at March 31, 2025 As at March 31, 2024 Discount rate 1.00% 1.00% (4.15%) (3.14%) 4.63% 3.43% Attrition rate 1.00% 1.00% (0.95%) (0.64%) 1.05% 0.68% Rate of return on plan assets 1.00% 1.00% (4.15%) (3.14%) 4.63% 3.43% Salary escalation rate 1.00% 1.00% 4.44% 3.29% (4.06%) (3.08%) The above sensitivity analyses are based on a change in an assumption while holding all other assumptions constant. In practice, this is unlikely to occur and changes in some of the assumptions may be correlated. When calculating the sensitivity of the defined benefit obligation to significant actuarial assumptions, the same method (present value of the defined benefit obligation calculated with the projected unit credit method at the end of the reporting period) has been applied while calculating the defined benefit liability recognised in the Standalone Balance Sheet. The methods and types of assumptions used in preparing the sensitivity analysis did not change as compared to the 2023-24. Major categories of plan assets are as follows: (` cr) Particulars As at March 31, 2025 As at March 31, 2024 Unquoted in % Unquoted in % Government of India assets 1.18 1.79% 1.18 1.86% Debt instruments Corporate bonds 1.40 2.11% 1.34 2.12% Investment funds Insurance funds 63.21 95.44% 60.52 95.58% Others 0.28 0.42% 0.12 0.19% Special deposit schemes 0.16 0.24% 0.16 0.25% 66.23 100% 63.32 100% Note 29.6 Employee benefit obligations (continued) 206 206 Integrated Annual Report 2024-25
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