V.M. Sudheeran had stepped down from the post on Friday citing health reasons.
"Sudheeran's decision to quit was his own and party had no role in it", Chennithala said.
He had recently been injured in a road accident in Kozhikode. The Muslim League, which had defended Mr Sudheeran in his strong stand in liquor policy, is now peeved that he did not bother to take the party into confidence before deciding to call it quits.
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Although they still have a match in hand, Real Madrid now trail the Catalans in the table. "We'll suffer, but we're motivated". He also added: " We will take the pitch to win the game as we always do. "We always go out to play", he said to reporters.
With party president Sonia Gandhi out of the country and the results to the polls in five states to be out on Saturday, the party high command is likely to summon the top three leaders Sudheeran, Chandy and Leader of Opposition Ramesh Chennithala to Delhi. Prolonged treatment is needed for me.
Sudheeran was appointed as KPCC chief in February 2014, just ahead of the Lok Sabha elections. Earlier, he had held the post of Speaker and had also served as the state health minister. "I'll be sending the resignation letter to the Congress president today", Sudheeran told reporters on Friday. Sudheeran, whom Congress Vice-President Rahul Gandhi had handpicked to lead the party in the state, said internal problems in the state unit had nothing to do with his decision. As he had always stood neutrally to party issues, he was never favoured by any of these groups. He said Sudheeran's exit was a major loss for Congress in Kerala. There are high chances that former Chief Minister Oommen Chandy to be entitled to this responsibility.
VM Sudheeran was born in Anthikkad in Thrissur district of Kerala.