The meeting also includes some of Sonia Gandhi's close associates and is the first effort by the Congress leadership for a reproachment with those who raised questions over the leadership.
Those attending the meeting from among the letter-writers are Leader of Opposition in Rajya Sabha Ghulam Nabi Azad, deputy leader of the party in the upper House Anand Sharma, former chief ministers Bhupinder Singh Hooda, Prithviraj Chavan, and MPs Manish Tewari, Vivek Tankha and Shashi Tharoor.
Former Madhya Pradesh chief minister Kamal Nath and senior leader P Chidambaram are also part of the meeting, the sources said.
Among Sonia loyalists at the discussion that will include a range of issues, primarily organisational elections, are A K Antony, Ambika Soni, Ashok Gehlot and Harish Rawat, besides Pawan Bansal.
Sources said a number of organisational issues is likely to be discussed at the meeting.