"Surprisingly, it is noticed that BJP through their different networks are continuously engaged in making irresponsible comments, unparliamentary utterances and persistent character assassinations, where even women are not spared," Banerjee said in a Facebook post.
"Such arrogance and irresponsible conduct remind us of the Emergency days. I do not want to see deterioration and demolition of the beauty of democracy," she said, adding "One first needs to behave and then guide others."
The Centre on October 9 decided to hand over the blast probe to the NIA, a decision which the state government said was taken suo motu.
The BJP while demanding that the Centre hand over the case to NIA had alleged that the TMC government was trying to hush up the matter. The party also accused the state government of "resisting" a NIA probe.
Commenting on Banerjee's Facebook post, state BJP spokesman Ritesh Tiwari said the Chief Minister was levelling baseless allegations.