Union Fertiliser Minister MK Alagiri will meet Prime Minister Manmohan Singh and Congress president Sonia Gandhi in New Delhi on Thursday to invite him to his son's wedding.
The wedding of Alagiri's son Dayanidhi is slated for November 18.
MK Stalin, Tamil Nadu's deputy chief minister and Alagiri's younger brother who is in New Delhi to attend a Chief Ministers' meeting on agriculture, will accompany Alagiri.
It is expected that the two brothers may also discuss a possible poll pact seeking extra seats with the Congress in Tamil Nadu in the ensuing April 2011 polls.
Political analysts in Tamil Nadu do not rule out the possibility of Alagiri quitting as Union Minister after the wedding to jump into massive electioneering for the success of the Dravida Munnetra Kazhagam in southern districts of Tamil Nadu.
Six districts, which come under Alagiri's control, comprise 112 assembly constituencies.
The challenge before Alagiri is to get at least 80 DMK MLAs elected -- a tough task, which should give Alagiri a handle to contest against his younger brother MK Stalin for the post of Chief Minister.
It may be recalled that Alagiri had accepted the challenge and sought an open contest for the post of chief ministership of Tamil Nadu.
Image: Engagement photo of Dayanidhi and Anusha