Remains of Bangladeshi civilians killed during the Liberation War of 1971 have been found in a mass grave in Rajpara village at Purbadhola upazila of the district.  Upazila executive officer (UNO) Mohammad Mozammel Haque said the grave was found in one Abdul Hamid Talukder's house premises on Sunday.  His family members dug out some skeletons and other remains accidentally from the spot, Haque said.  Talukder informed the  UNO and local police as they stumbled upon the remains.  "The excavation process for more remains is still in progress and we've started listing the excavated remains," …