Patna, (Agencies): Editor of an English weekly, Navlesh Pathak who  was arrested for the murder of Bharatiya Janata Party legislator Raj Kishore Kesri, went on an indefinite fast on Thursday at Bihar's Purnia jail to protest against the inferior quality of food served to him.

“Navlesh Pathak in his letter  has appealed to the jail officials to provide him edible food instead of poor quality of food as he has lost eight to ten kg of weight in the last 25 days,' a close relative of Navlesh Pathak said.

Navlesh Pathak's family members have constantly alleged that he is being poorly treated by the jail officials.

Last month, Pathak said he fears risk to his life. 'I fear threat and danger to my life in judicial custody to hide evidences against powerful people in the case,' he said.

Kesri, a BJP legislator from Purnia constituency, was killed on Jan 4 at his home by school teacher Rupam Pathak, who alleged the politician had raped her for over three years.

Navlesh Pathak, editor of Purnia-based English weekly Quisling, was the first to report about Rupam's sexual harassment complaint. He was under arrest after Kesri's nephew lodged a complaint against three people, including Rupam.

He was sent to judicial custody for 14 days by a Bihar court last month.

He had put forward a demand for Central Reserve Police Force (CRPF) security during judicial custody. The court on Monday extended his judicial custody by 14 more days.

 Navlesh Pathak's wife, Ruma has alleged that police have been biased in their investigations.

Rupam Pathak, 40, went to Kesri's home in Purnia and stabbed him to death in the presence of a number of people. Following the murder, Rupam was beaten up by Kesri's security guards and supporters. She alleged that Kesri, 51, had raped her for over three years, a charge the BJP refuted.

Bihar Chief Minister Nitish Kumar in January ordered a Central Bureau of Investigation probe into the murder following a furor by the opposition and women organisations.

A group of journalists in Bihar have insisted on the immediate release of Navlesh Pathak