The dinner was also attended by party vice president Rahul Gandhi.
The dinner meeting came against the backdrop of the party's campaign for the ouster of External Affairs Minister Sushma Swaraj in the session in the wake of Lalit Modi controversy.
The demand was today met with a strong counter-offensive with Swaraj launching a no-holds-barred attack on Congress accusing it of having taken money to help Ottavio Quattrochchi and Warren Anderson flee India even as government rejected the demand for her resignation.