The CPI(M) Polit Bureau said there were reports that some of the Lok Sabha MPs who have been convicted for "serious crimes" and who are in jail are being mobilised to support the government in confidence vote.
While legally the convicted MPs may get the right to attend Parliament and vote, "there is a question of political morality involved," the party said in a statement.
"The Congress leadership will be seen by the entire country as taking recourse to convicted criminals for sustaining their government," it said.
The statement pointed out there were three members who were convicted on criminal cases
