Bolpur, April 11 :    Bolpur, April 11:  A physician working at the state-run sub-divisional hospital here committed suicide by consuming pesticide in his quarters early this morning. After returning from hospital yesterday, Saumitra Bhattacharya entered his bedroom and locked it, according to relatives. Soon he consumed sleeping pills. After getting no response for hours, Bhattacharya's wife and son raised an alarm and neighbours force-opened the door. Bhattacharya was found on the bed frothing in the mouth. He was rushed to hospital where doctors declared him dead. Hospital superintendent Manabendra Ghosh said Bhattacharya was a good physician and nobody could sense that he was depressed. Police have registered a case of unnatural death as no suicide note was found. The police, who suspect a family dispute to be the cause of death, interrogated Bhattacharya's relatives and colleagues to ascertain the motive behind the suicide.