The Left parties, scouting for a poll partner, are likely to go with the AIADMK in the forthcoming Lok Sabha assembly elections.
The CPI has been in touch with AIADMK for an alliance and its general secretary A B Bardhan had recently met AIADMK leader Jayalalithaa on her invitation and exchanged "notes on national politics in a very cordial and friendly atmosphere".
The CPI followed up this discussion when its state secretary D Pandian met Jayalalithaa.
Bardhan gave enough indications of an electoral alliance with the principal opposition party in Tamil Nadu, but stopped short of declaring it.
After the meeting, he had told reporters waiting outside Jayalalithaa's residence "to draw your own conclusion."
The CPI-M is also likely to go with AIADMK as the Left parties had already decided to put up a united fight in the Lok Sabha polls.
Though some CPI-M leaders in the state are not keen on an alliance with the AIADMK, its politburo has reportedly favoured a tie-up with the party. Local leaders are apprehensive that Jayalalithaa might go with the BJP in the post-poll scenario.
However, with Jayalalithaa saying she was "not averse" to a poll arrangement with the Left parties, the chances of a "political marriage" between them look brighter.