"We have noted with dismay that the West Bengal Chief Minister has indulged in a personal attack on the Prime Minister and even described him as not being a grassroots leader besides taking recourse to mimicry in a televised interview last night," WBPCC president Pradip Bhattacharya told a press conference at the party office.
Asking Banerjee to desist from making 'unwanted comments and mimicry', he said it set an "unhealthy" precedent in national politics.
Bhattacharya said "the comments you have made, I feel, would have hurt you deeply too if made against you.
"It is not wise for her to be so much impulsive as such trends violate political decorum," he said.
The WBPCC chief suggested the Chief Minister was agitated after finding that the UPA government continuing in power at the Centre after withdrawal of support by Trinamool Congress.
"She is frustrated that her wish for mid-term election at the doorstep after withdrawal of Trinamool Congress support to the UPA has not been fulfilled," he said.
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Bhattacharya challenged Banerjee's claim that Congress would fail to win a seat in West Bengal if Lok Sabha election was held now.
"We challenge the Chief Minister's claim and Congress will show how it can perform in Lok Sabha election," he said.