Time period for the Central Government Dearness Allowance revision Time Interval for revision of dearness allowance: Endeavour shall be made so that the cost of living allowance and the cash value of the concession in respect of essential commodities at concession rate shall be computed once before 1st April and 1st October in every year to revise the dearness allowance … [Read more...] about Time period for the Central Government Dearness Allowance revision