"I don't think there is a time-frame. The Ministry of Defence has asked the IB to look into the matter and I know that the IB is looking into the matter. There is no time-frame. But obviously it has to be done quickly," Home Minister P Chidambaram told reporters in New Delhi.
He was responding to a question on when the IB will complete its probe into the inquiry of the leak which has triggered sharp reactions from the government and opposition parties.
On Thursday, Defence Minister AK Antony vowed to take the "strongest action" under laws against those responsible for the leak of Gen Singh's letter to the Prime Minister.
Antony said the government will get to the root of it and find out the persons behind the "anti-national" act.