Aizawl, Aug 22 : An influential Mizoram student body today expressed doubt over the number of Bru refugees in six relief camps in North Tripura who fled the state and said it has to be reassessed.The figure given by the Mizoram Bru Displaced People's Forum (MBDPF), which made a survey of Bru refugees, could not be accepted, a statement issued by the student federation, Mizo Zirlai Pawl (MZP) said....