The accused, identified as Prahlad Das, was shot after he allegedly attempted to escape while being taken by police to recreate the crime scene.
Accused allegedly snatched service revolver
According to reports, Das allegedly snatched a service revolver, opened fire at a police personnel and jumped into a pond while attempting to flee.
Police retaliated in self-defence, shooting the accused. He was subsequently rushed to a hospital, where he was declared dead.
The incident reportedly took place between 3 am and 3:30 am on Tuesday.
Class 11 student's body recovered
The case came to light on Sunday morning when the body of the Class 11 student was recovered from behind a house in Gaighata, near the Indo-Bangladesh border in North 24 Parganas district.
The girl had reportedly gone missing on Saturday night after attending a musical programme near a local market.
According to reports, she left the programme after receiving a phone call.
An initial investigation found multiple injuries on her body, including marks on her head and face.
Accused remanded to police custody
Acting on a complaint lodged by the girl's family, police arrested Das, who was reportedly known to the victim.
A court in Bongaon remanded him to 10 days of police custody on Sunday.