Under the MSS, RBI, on the behalf of government, absorbs liquidity by issuing Treasury Bills and/ or dated securities.
"The ceiling for outstanding balance under the MSS for the fiscal year 2014-15 has been fixed at Rs 50,000 crore," the RBI said in a statement.
"This ceiling will be reviewed when the outstanding balance reaches the threshold limit of Rs 35,000 crore," it said.
The government launched MSS in consultation with RBI in 2004 with the objective to absorb excess liquidity, arising out of significant foreign exchange inflows, by issuing treasury bills or dated securities.
For the current fiscal, the government has pegged its borrowing requirements at Rs 5.97 lakh crore. Of this, about 61.5 per cent or Rs 3.68 lakh would be borrowed in the April- September period.