Jamshedpur, July 25 -- Mystery thickened in the drowning of two MGMMCH doctors in Dimna lake here after the parents of the two deceased expressed suspicion on lone survivor Dr Yash and filed an FIR in the matter on Saturday, police said.

"Father of deceased Dr Saksham Singh, Satyendra Kumar Singh has filed a written complaint demanding a comprehensive investigation into the circumstances leading to the drowning and unnatural death of his son and Dr Samir Lal. An FIR is being registered on the basis of his complaint. Call detail records (CDR) and other technical and forensic aspects are being inquired into. Further action will be taken on the basis of preliminary investigation," Dayanand Kumar, Patamda deputy superintendent of police (DSP...