Fellow SFI activists of Sudipto, including a girl, an eye-witness to the horrific incident said that the police beat up Sudipto while he and 30 others were being taken to the Presidency jail in a private bus.
"He was pushed out of the bus by policemen and his head hit a lamp-post near the Presidency jail. One cop hit him on his head with a lathi," said Tanushree Mondal, a fellow activist.
SFI General Secretary Satarup Ghosh, who is an eyewitness, said, "He was hit on his head so hard that one of his eyes came out."
Jawed Shamim, special additional commissioner of police (headquarters), termed the death an accident. "Sudipto and the other students were on the foot-board and lost balance when the bus took a turn.... Sudipto's head hit a road-side lamp-post and he fell off the vehicle," Shamim said.
SSKM Hospital, where Sudipto was declared dead at 6.20pm, said the head injury appeared to have been caused by a metallic object. "Sudipto died because of a severe head injury and multiple other injuries. Apparently, the head injury was caused after he hit a heavy metallic object," said Tamal Kanti Ghosh, medical superintendent of SSKM.
The 23-year-old student died after police allegedly beat him up severely, when he and his fellow activists were protesting against Mamata Banerjee's government decision to put off college union elections on Tuesday, April 2. The post-mortem report of the deceased activist is likely to come up on Wednesday.
The CPM has called a "12-hour general strike in the Tollygunge-Garia area" on Thursday.
"I can't remember the death of a student in police custody in recent memory.... We want a judicial probe into the death of Sudipto," said Left Front chairman Biman Bose.