"The invitation (issued earlier) stays. But they have to decide," CPI(M) state Secretary G Ramakrishnan told reporters here in response to a question in this regard.
CPI(M), besides CPI and VCK, is part of the four-party PWF, led by MDMK founder Vaiko.
Earlier, all PWF leaders--Vaiko, Ramakrishnan, CPI state Secretary R Mutharasan and VCK founder Thol Thirumavalavan, had called on Vasan in January, inviting him to join the coalition.
PWF had recently clinched a pact with actor-politician Vijayakant's DMDK to face the May 16 Assembly polls in Tamil Nadu, allotting 124 seats to it.
