CPI(M) on Wednesday demanded a judicial inquiry into the death of SFI leader Sudipto Gupta alleging he was beaten to death by the police.
"We have demanded a judicial probe into the killing of Gupta," who was brutally beaten by the police, state CPI(M) leader Rabin Deb said.
The 22-year-old was injured in a lathicharge by the police and died due to the injuries suffered by him, the party alleged.
CPI-M senior leader Mohammed Salim said that as Gupta died in police custody, chief minister Mamata Banerjee, who is also the home minister of the state, owed an answer why the youth was killed.
Joint commissioner of police (headquaters) Javed Shamim earlier said the youth died in a city hospital.
"He received an injury in an accident when he, along with 30 others, was being taken in a bus after being arrested. There was not even lathi charge by the police," Shamim said.
The incident happened when SFI supporters gathered in Rani Rasmoni Road area of the city in connection with a protest rally to demand holding of college union elections in the state.
Police said SFI supporters turned violent and threw rotten tomatoes and eggs at the police personnel deployed in the area.
Police then arrested 331 SFI supporters and Gupta along with 30 other supporters were put into the bus from which he accidently fell and was injured.
The hospital authorities said Gupta was admitted with head injury.