Section 5 in The Insurance Regulatory And Development Authority (Actuarial Report And Abstract) Regulations, 2000
5. Returns on assets
.-(1) The average gross rates of interest yielded by the assets may be determined expressing the investment income as percentage of the mean fund. [ i = 2xI/(A+B-I); where i is the gross yield; I = Investment Income; A = the assets at the beginning of the financial year, and B = the assets at the end of the financial year; Investment Income (shown in the Revenue Account) should include the amount of the unrealised gain taken into revenue account, A and B have to be adjusted value of assets shown in the Balance Sheet.(2)The average gross rates of interest, referred to under sub-regulation (1), shall be furnished for each fund maintained by an insurer.
