'We will never agree to the strategies aimed at dividing the poor,' he said in the missive, read out by Left Front chairman Biman Bose.
Attacking the state's opposition parties and Maoists for stalling development by perpetrating violence and triggering lawlessness, Basu appealed to the Left workers to mobilise the people against such atrocities.
'Work for the people. We should not lose faith in the people, even those who have turned against us. Many have voted against us in the last general election. We have to correct our mistakes. We have to bring these people back to our fold,' the leader said.
'I have confidence that the people of our state will never pitch their lot with opportunistic alliances and parties devoid of policies and morals,' said Basu.