In the letter addressed to the Chief Minister of West Bengal, the members of various women's and students' organisations charged that the "police directly under your control acted in a manner which not only further victimised her (the victim) and her family but eventually led to her murder".
"We strongly believe that if your government had acted against the criminals after she was gangraped on October 24, the subsequent horrific events could have been prevented and the woman's life could have been saved," the letter.
The girl was taken to a hospital which had no burn unit despite demands that she be shifted to one which did, the letter said.
"As you (Bengal CM) hold the Health Ministry, couldn't you, or on your direction, any senior government official, have intervened to ensure that the victim was not denied the specialised medical care she required?," the letter adds.
Also Read
"Such brutal behaviour on part of the police and the administration raises doubts as to whether the family of the victim would be able to get justice at all," the letter said.
"We therefore demand that the government hand over the investigation to an impartial agency which should be court monitored," is said.
The letter also demanded action against those police officials who allegedly harassed the girl's family. It also sought an inquiry into the charges of negligence leading to her death.
A delegation of representatives from national women's organisations led by AIDWA General Secretary Jagmati Sangwan also met the Bengal Resident Commissioner here over the case.