A contingent of police headed by SI Ajmol Huda of Rupsha thana brought him here.

Abdur Rahman was a regional leader of outlawed Purba Banglar Communist Party (PBCP-Jonojuddha), police said.

The fugitive extremist who hails from Shamontashena village in Rupsha upazila of Khulna district went to Bianibazar three months ago with his wife Noori Begum.

He opened an account with Bianibazar branch of AL Arafa Bank, identifying himself as Abdul Hannan.

Police said the arrested extremist was wanted as an FIR-named accused in twenty criminal cases including twelve for murders, filed with Rupsha police station in Khulna district and Fakirhat police station in Bagerhat district.

The Officer-in-Charge of Rupsha police station said Abdur Rahman was directly involved in murders of Sub Inspector Shamsul Huq and Havilder Abu Bakar Siddique on July 4 in 2004 at Bamandanga under Rupsha upazila. Besides, he was also involved in murders of bank employee Noor Islam, freedom fighter Sattar Shikder, Fakirhat Union Parishad chairman Ator Ali, transport workers' leader Atiar and Shafi, Jubo Dal leader Masum Sheikh and PBCP (M-L) cadre Kabir Hossain.

Abdur rahman was staying at the house of his younger brother who is a Muazzin of a mosque at Beanibazar, said SI Ajmol Huda who led the operation to arrest him.

His wife Noori Begum managed to escape.

Police recovered some documents from his possession. One of the documents is a certificate issued by a Union Parishad Chairman certifying the dreaded terrorist as a good man and his wife Noori Begum as a woman of conservative family.

Extremist Abdur Rahman used this certificate to move at large at Bianibazar where he opened a grocery shop to earn his livelihood after leaving Khulna in the face of joint forces operation, OC of Rupsha police station said.

He was being interrogated when the report was filed yesterday afternoon.