Abdul Mannan, brother of victim Ismail Hossain, lodged the case with the Senior Judicial Magistrate’s Court on Wednesday.
Taking cognisance of the complaint, Senior Judicial Magistrate KM Mahiuddin ordered the Detective Branch to submit a report along with that of the sensational seven-murder case.
The former Rab officials accused in the case are Lt Col Tareque Sayeed Mohammad, Major Arif Hossain and Lt Commander MM Rana.
The plaintiff alleged that Nur Hossain, the prime accused in the seven-murder case, and the three Rab officers were involved in the abduction of his brother.
According to a case filed with Sonargaon Police Station after the alleged abduction, unidentified miscreants abducted Ismail, a contractor by profession and a resident of Kutubpur area of Sonargaon upazila, on his way to Dhaka in a microbus on February 7 this year.
Family members alleged that the three Rab officials sacked for their alleged link to the seven murders had also kidnapped Ismail Hossain to realise Tk 2 crore as ransom.
After the abduction, the family members said, then Rab-11 Commanding Officer Lt Col Tareque sent a letter written by Isamil to them by two members of the elite force demanding Tk 2 crore in ransom for his release.
