The meeting of the party's Central Committee follows days after top leaders of nine parties met here to announce their coming together for Lok Sabha elections.
The crucial meeting will also debate the broad contours of the CPI(M)'s election manifesto, party sources said.
The state units will present reports on the pros and cons of state-level alliances and seat-sharing arrangements with the Left and secular parties to enable the Central Committee to arrive at a conclusion as to how many candidates to nominate and from which constituencies, they said.
Maintaining that Lok Sabha elections would be a three-way contest, CPI(M) feels that the non-Congress, anti-BJP combine, providing an alternative policy trajectory, could prove to be a political alternative.
The party has exuded confidence that more regional outfits would join the combination of 11 Left and secular parties ahead of the general elections.