New Delhi, May 18IAS and IPS officers, who have retired before 2006, will get a hike in pension, in addition to the arrears, as the Centre has done away with a provision of 33 years of service for earning full pension.The move comes after the Department of Pensions and Pensioners Welfare decided that the revised consolidated pension of pre-2006 pensioners shall not be lower than 50 per cent of the minimum of the pay in the pay band and the grade pay even if they had served for less than 33 years at the time of retirement.Necessary orders directing authorities concerned to calculate the revised pensions in respect of Union Government pensioners, excluding retirees of three all India services have already been issued. — PTI