Cuttack, May 26: Police today filed a charge sheet in a local court against the Dhal Samant brothers and 14 others for the alleged murder of Manoj Mallick alias Dipu.

Dipu, a sharpshooter for the brothers, was allegedly abducted from his house and beaten to death at a farmhouse in Athgarh along with his partner Om Prakash Swain in 2013. Their bodies were later disposed of at an isolated place in Jharkhand.

The 1,120-page charge sheet contains statements of six persons, including Dipu's family members, forensic report of bloodstains and other physical evidences.

It also contains the statements of at least seven persons, including close associates of the siblings.

"We are hopeful of the duo and their associates' conviction. We gave adequate emphasis on a detailed probe and evidence collection in the case," said police commissioner Y.B. Khurania.

Khurania said that Chauliaganj police had registered a case against Sushil and Sushant Dhal Samant following a court direction on January 18 and subsequently arrested the duo on January 28, 2016.

Officials said the murder had taken place a day after the kidnapping, and that it was really challenging to collect physical evidence about the murder after more than two years.

However, the statements of the aides helped the cops recover bloodstains from the farmhouse where Dipu and Om were allegedly beaten to death.

The cops also recovered bloodstains from a luxury sedan and another car which the siblings used to transport and dispose of the bodies at Gua in Jharkhand.

The farmhouse where the murder took place belonged to Nirmal Rout. The cops had arrested him along with another Dhal Samant aide Debasish Kar on February 12.

The police solved the mystery behind the alleged kidnapping and murder after interrogating Bharat Behera alias Litua and Sanjay Sahoo alias Bhajana - two key associates of the gangster brothers.

After killing both Dipu and Om, the duo and their associates had packed the bodies in two gunny bags and headed for Paschimi Singhbhum in Jharkhand in a sedan and an SUV. They threw the bodies from a bridge and burnt them by pouring petrol.

On November 18, 2013, local villagers spotted the charred bodies and informed Gua police officials, who subsequently registered a case under sections 302 and 34 of the Indian Penal Code.

Both the bodies had 70 per cent burns, which prevented the cops from establishing the identities. Gua police conducted an autopsy and later buried the bodies 48 hours after the recovery.