A meeting of the Congress Core Group headed by party president Sonia Gandhi with the Prime Minister by her side deliberated over the issue for more than one hour.
Further consultations are expected soon to take a call on whether the Prime Minister should attend the Commonwealth Heads of Government (CHOGM) meet, party sources said.
There has been a huge political controversy over India's participation in the summit with political parties and various groups in Tamil Nadu strongly opposed to it.
The government is in a dilemma over the issue with some sections feeling that the Prime Minister's absence at the CHOGM could affect India's image internationally and hence he must participate.
The issue was discussed last month also by the Core Group and Union Ministers P Chidambaram and A K Antony are learnt to have suggested that the PM should not visit Colombo to attend the meet.
Twenty one pro-Tamil outfits have called for a Tamil Nadu and Puducherry bandh on November 12, to mount pressure on the Centre against taking part in the meet.
Union ministers V Narayanasamy, Jayanthi Natarajan and G K Vasan have publicly opposed the Prime Minister's participation in the summit.
