Indian bond traders, who were expecting the Reserve Bank of India (RBI) to keep the cash spigot open, may have to rework their calculations.

The RBI will hold a reverse repo auction of Rs 25 thousand crore of 63-day duration on Wednesday, the first such move to use the tool for a longer duration to drain cash. It will hold additional rounds if needed, the central bank said late Tuesday evening.

“The market will read it as no open-market operations by the RBI for now,” said Naveen Singh, head of fixed-income trading at ICICI Securities Primary Dealership, in Mumbai.

“While the cash removal isn’t expected to immediately make a dent, thanks to the easy liquidity conditions, investors are concerned that the reduction in debt purchases by the central bank would remove a key support at a time when the government plans to borrow a record Rs 7.1 lakh crore this fiscal year,” Singh said.

The RBI bought a record Rs 3 lakh crore of debt in the year ended March, helping cool bond yields, and has since spent a further Rs 5 lakh crore on such purchases. It also introduced a forex swap tool to inject rupee liquidity as an alternative to debt buys.

Slowing economic expansion and a widening shadow banking crisis have led to calls for more liquidity, leading to some traders speculating that the RBI will move to a reverse repo mode, pulling inter-bank rates lower.

“This seems to be a way to exert greater control in rates out to the three-month tenor,” said Eugene Leow, a rates strategist at DBS Bank in Singapore. It is probably needed in order to handle the liquidity surplus that has been built up over the past few weeks.