A 19-year-old youth was arrested in Bengal’s Malda district today for allegedly murdering his parents, grandmother and younger sister in February.

The bodies of the accused's family members were exhumed and sent for post-mortem examination, Superintendent of Police Alok Rajoria said.

''On February 28, the accused had served all the family members cold drinks spiked with sleeping pills. As they fell unconscious, he tied their hands and gagged their mouths with duct tapes. He then drowned the four persons in a reservoir in the house and buried the bodies in the floor of a room.

''The elder brother somehow managed to loosen his duct tape and escaped from the house after a brief physical struggle with the accused. He had gone to various places including Kolkata during these four months,'' the SP told before media.

As per the preliminary investigation, the accused had demanded money from the deceased and several lakhs of rupees and several electronic gadgets have also been recovered from the house, Rajoria said, adding, that investigation is underway to ascertain the motive behind the murders.

Samastipur priest beaten to death, blood-soaked body found in temple

Jharkhand: A woman was brutally beaten up by villagers, know why

Farmer dies by suicide in Banda, Uttar Pradesh; Probe ordered