"The attitude of the Chief Minister and the West Bengal government makes it clear that there can be no impartial investigation into the custodial death of Sudipto Gupta," CPI(M) General Secretary Prakash Karat said here.
It is imperative that a judicial inquiry be held and the investigation conducted "independently", he told PTI.
Karat's comments came a day after Banerjee stoked controversy by saying that the death was a "small and petty matter. It was an accident, there was no police atrocity".
Both CPI(M) and the Congress have criticised Banerjee for jumping to conclusions. "The police said when investigation is on don't jump to any conclusion, but she has reached a conclusion," CPI(M) leader and Leader of Opposition in the state Surjya Kanta Mishra had said yesterday.
WBPCC president Pradip Bhattacharya had said, "The police said the investigation is on. Doesn't she know it?...