The government also issued OROP Tables which said that the arrears from July 1, 2014 to December 31, 2015 would be approximately Rs 10,900 crore.
86 per cent of the total expenditure on account of OROP will benefit the Junior Commissioner Officers and other ranks.
The total increase in the defence budget for pensions is estimated to go up from Rs 54,000 crore (BE 2015-16) to around Rs 65,000 crore (proposed BE 2016-17), thereby increasing the defence pension outlay by about 20 per cent.
The government had in November last year taken the historic decision to implement OROP, "fulfilling" the long standing demand of defence personnel after 42 years.
The move that will benefit over 18 lakh ex-servicemen and war widows had been rejected by a section of the veterans who are still protesting saying there are a number of "lacunae" in the scheme.