The arrested persons--Zubair Hossain Litu, Sirajul Islam and Habibur Rahman--are being interrogated, police said.

Rezaul, a first class contractor of PWD and RHD, was shot dead from close range Wednesday morning few yards from Bablatala police outpost.

He was bound for the house of his cousin Rentu Chaklader, general secretary of Jessore district Jubo League, sources said.

Acting on the confession of Habibur Rahman, police on Thursday recovered Rezaul's motorbike from Jessore satellite town.

Police recovered Rezaul's mobile phone and three used bullets of 2-2 bore revolver along with some leaflets of Purba Banglar Communist Patry (PBCP) from the spot of the incident.

Meanwhile, a case has been recorded with Jessore Kotwali police without naming any one as accused.

After the murder, SI Harun-ar-Rashid of the police outpost has been suspended and closed to the police lines and all other policemen have been replaced.

The body has been sent to Khamarail village under Kaligaj upazilla in Jhenaidah district after autopsy.

Police said they suspect that the killing could be intra-party feud in Jessore Jubo League or rivalry over securing contract.

Rezaul used to finance the Jessore Jubo League faction led by Rentu Chakladar. The other group was led by Jessore town Jubo League president Mostafa Kamal Parbat.

Mostafa Kamal was attacked and injured by supporters of Rentu Chakladar following the recent party council.

Police said PBCP cadres had threatened Rezaul not to bid for construction of the Tk 5.87 crore Hashdaha-Chuadanga road under the local government ministry. He was threatened by PBCP after the bidding. He filed a general diary with Kotwali thana, police said.