The finance ministry on Friday held a meeting with bankers to discuss ways to use excess liquidity in the system.
There was consultation on introduction of standing deposit facility (SDF). While some bankers agreed to it, others sought more time to assess the scheme, sources said.
The SDF is a tool used for sucking out surplus liquidity without the need for a collateral in exchange.
The demonetisation announced by prime minister Narendra Modi on November 8 has led to a huge surge in deposits, with scrapped notes of Rs 500 and 1,000 being parked with banks.
According to various informal estimates, about Rs 14 lakh crore has come back into the banking system.
High cash deposits have raised concerns about price rise at a time when the RBI is seeking to check inflation by changing its policy stance to neutral from accommodative.
Wholesale inflation soared to a 39-month high of 6.55 per cent in February and retail inflation inched up to 3.65 per cent due to higher food and fuel prices, reportedly justifying RBI's move to hold interest rates at the last policy meeting.