"Rupee will settle down," he told reporters here. (Agencies)
In early trade on Monday, the rupee fell to 63.33 to a dollar, its weakest since September 18.
The Indian currency started weakening since last week after the dollar purchase by oil companies was partly shifted to the market.
"Rupee weakness is due to OMC forex demand being moved to market. 30-40 percent of OMC demand has moved to market," Economic Affairs Secretary Arvind Mayaram had said last week.
The PSU oil companies are the biggest buyers of dollars, requiring USD 8-8.5 billion every month for the import of an average 7.5 million tonne of crude oil.
In August, the Reserve Bank had opened a special window to help the three state-owned oil marketing companies -- IOC, HPCL and BPCL -- to meet daily foreign exchange requirements and buy dollars directly from RBI.
The rupee has recovered over 8 percent since August 28, when it fell to a record low of 68.85 to the dollar. The gain in rupee had followed optimism that the US Federal Reserve would delay the tapering of its bond buying programme.
"Rupee will settle down," he told reporters here.