Two other accused in the extortion case, filed by one Panaullah on April 23 for extorting him of Tk 75,000, are Aynal Haq and Shafikul Islam.
Tight security measurers were taken in and around the court sensing their surrender.
Shahjahn and his associates went to the court at around 11.30am and they were taken to jail after one hour.
The court directed the district jail authority to arrange Shahjahan's stay in jail in accordance with jail code when his lawyers appealed for his division.
The surrender occurred on the first day of beginning of the trial in the extortion case.
The district and sessions judge Hrishikesh Saha fixed the charge framing date as quickly as today, as trial of the case was included under the emergency power rules of 2007.
Charge sheet of the extortion case of Panaullah was submitted on 7 June accusing three persons including Shahjahan after several witnesses provided judicial statements supporting the allegations.
Shahjahan was absconding in all five cases one for ordering terrorist activities, two for extortion and two others for cheating and misappropriation of money from people. Charge sheets in four cases were already submitted.
Shahjahan's role behind Kansat Tragedy
Villagers at Kansat of Shibganj upazila in Chapainawabganj blame Shahjahan for his role behind police atrocities on them in early 2006 and he is still abandoned in Kansat.
Envied and angry at the sudden rise of Kansat Pally Biddyut Unnayan Sangram Parishad and its conveynor Golam Rabbani over their struggle for electricity, Shahjahan, also former chairman of parliamentary standing committee for home affairs forced police to arrest Rabbani.
The consequent outrage of power subscribers eventually attempted to cover by unleashing atrocities of police and BNP cadres leaving 17 innocent villagers shot dead and several hundred injured and tortured.
It was also alleged that local administration could not take any step to mitigate the subscribers' problem due to the former lawmaker's stance against people's movement.