The post-mortem report claimed two of the three women- sisters-in-law Sudeshna Dey and Romi Dey- died of excessive bleeding from slit wrists and throats.

The wounds were homicidal, said police.

Romi's teenage daughter died of poisoning but she had injury marks in various parts of her body.

How did the incident come to light?

The lifeless bodies were discovered after a sedan- carrying 48-year-old Prasun Dey, 44-year-old Pranay Dey and his son Pratip Dey (14) - crashed into a pillar at 100 km/hr near Avishikta on EM Bypass in the wee hours on Wednesday.

The three passengers, who were rushed to a hospital, survived the crash.

The crash started appearing not merely a remote accident when Pranay told cops that there were three women from his family lying dead at his Tangra house.

Pranay claimed all six family members consumed sedative-laced dessert to die while the three men took the ride to commit suicide.

Police rushed to the Tangra house, broke open the main door and discovered the three lifeless bodies in three different rooms.

Romi and Sudeshna - the two older women - were found with throat and wrist injuries while Priyamvada - the younger one - was frothing from her mouth and also had injury marks.

The three women carrying injuries exactly mirrored Pranay's claims as the man told cops some of his family members had inflicted wounds on themselves as well.

Pratip, who was seated in the backseat of the car, also had an injury mark on his wrist.

Though police suspect a suicide pact by the family of six, a murder case has also been lodged.

Cops suspect the Deys attempted suicide being unable to recover from the Covid period financial losses in their leather and goods manufacturing and exports.

Deys' neighbours said the family have always refrained from socialising in the area but maintained a respectable lifestyle.