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` in crore Decrease 0.40 - - - - ` in crore Decrease 0.38 - - - -
Family benefit scheme Increase (0.38) - - - - Family benefit scheme Increase (0.35) - - - -

Directors’ post retirement medical benefits Decrease Increase 0.57 (0.51) - - - - (1.01) 1.17 (0.32) 0.32 Directors’ post retirement medical benefits Decrease Increase 0.40 (0.36) - - - - (0.69) 0.83 (0.23) 0.22

As at March 31, 2020 Directors’ retirement obligations Decrease Increase 3.28 (2.95) - - (4.18) 4.81 - - (1.97) 1.98 As at March 31, 2019 Directors’ retirement obligations Decrease Increase 2.26 (2.05) - - (3.01) 3.43 - - (1.38) 1.37 The sensitivity analysis above has been determined based on reasonably possible changes of the respective key assumptions occurring at the end of the reporting period,

Post retirement medical benefits Decrease Increase 7.17 (6.31) - - - - (11.59) 14.57 (5.38) 5.53 Post retirement medical benefits Decrease Increase 4.10 (3.64) - - - - (6.80) 8.45 (2.98) 3.02

Impact on defined benefit obligation due to change in assumptions

Decrease 3.19 (2.95) - - - Decrease 2.70 (2.54) - - -

Gratuity (2.98) 3.12 - - - Gratuity 2.68 - - -

Increase Increase (2.53)

Sensitivity Analysis Compensation rate Healthcare costs Life expectancy Change by 1 year Compensation rate Healthcare costs Life expectancy Change by 1 year while holding all other assumptions constant.

7 Discount rate 0.50% change 0.50% change Pension rate 1% change 1% change Discount rate 0.50% change 0.50% change Pension rate 1% change 1% change

218 I INTEGRATED ANNuAL REPORT 2019-20