"This is the latest instance of the continuing violence by Trinamool Congress against CPI(M), the Left parties and the opposition. CPI(M) demands that the TMC leader and others responsible for the attack be immediately arrested," the party said in a statement.
Mollah was allegedly attacked by Trinamool Congress supporters at Kanta Tala in South 24-Parganas district yesterday.
CPI(M) alleged that Mollah was assaulted by Arabul Islam and others while visiting a party office which had been burnt down. It said that the senior leader had received injuries on his face.
Condemning the attack, the party said, "The Polit Bureau appeals to all democratic forces to raise their voice of protest against the thuggish violence indulged in by Trinamool Congress in West Bengal."
Trinamool has, however, denied any role of its party members in the incident and accused CPI(M) of making false claims.
"At a time when Chief Minister Mamata Banerjee has restored peace in Jangal Mahal and Darjeeling, CPI(M) is trying to foment trouble in the state by creating communal tension and inciting violence," Trinamool leader and State Urban Development Minister Firhad Hakim had said.