"Why have you all come here? Go back to Darjeeling. You people want a separate state and are maligning our government. Go to your hills and cast your vote there," Mr Pal told the three GJM legislators - Saritha Rai, Rohit Sharma and Amar Singh Rai.
A shutdown called by the GJM in Darjeeling entered the 33rd day today.
When state BJP president and legislator Dilip Ghosh tried to speak with Ms Rai, Mr Pal accused Mr Ghosh of trying to manipulate voters and violating the code of conduct.
Mr Ghosh said the TMC legislator's comment shows "the frustration of the TMC government and their MLAs". "It is not a way to behave with an elected MLA and that too inside the state assembly," the BJP legislator said.
Mr Pal said he did "nothing wrong". "I will repeat it thousand times if needed," he said.