According to Ind-Ra, the gross impact of the increased pay out on the government exchequer is likely to be Rs 94,775 crore (0.63 per cent of GDP).
"The central government will receive income tax on this pay out and collect excise duty on consumption, after sharing the increase in income tax and excise duty with states. Thus the net impact on the central government finances is estimated to be Rs 80,641 crore (0.54 per cent of GDP)," Ind-Ra said.
This is expected to boost consumption in the economy by Rs 45,110 crore (0.30 per cent of GDP) and increase savings by Rs 30,710 crore (0.20 per cent of GDP), Ind-Ra said.
"The revised salaries of central government employees are likely to be paid from July 1, 2016. While the employees will get salary arrears from January 1, 2016, allowances will be paid only from July 1, 2016," it said.
It said there is not any immediate threat to inflation due to the pay hike.
"Though consumer price inflation may inch up somewhat due to higher prices of services, impact on wholesale price index is likely to be muted due to the counter balance provided by the deflation in commodity prices and the availability of excess capacity in several manufacturing sectors," Ind-Ra said.