A case has been filed against former lawmaker Biren Sikder of Magura-2 constituency and 172 other leaders and activists of the Awami League with Mohammadpur police station in Magura.
The case was filed in connection with the killing of Suman, who was shot in front of the police station on August 4.
Mohammadpur police station officer-in-charge Thakur Das Mondal confirmed the matter on Thursday.
Kannu Rahman, a resident of Sripur Balidia village, filed the case.
Mohammadpur upazila Awami League president, among others, is the accused.
The case involves 173 named individuals and mentions an additional 500-600 unidentified persons as accused.
