Rule 57. Rate of interest payable by employer under clause (a) of sub-section (3) of section 77

If the amount of compensation payable under sub-section (3) of section 77 is not paid by the employer within the period of thirty days, the employer shall pay, from the date on which the compensation becomes payable to the date on which it is paid, simple interest at the rate of twelve per cent. per annum or any other rate notified by the Central Government from time to time.