A former college principal was found hanging at a bathroom of his residence at Women's College Road in the city on Monday morning.
Police recovered the hanging body of Abdul Wahab, 60, former principal of Comilla Govt Women's College, and sent it to Comilla Medical College Hospital morgue for autopsy.
They also recovered two suicide notes from his room where he wrote that he had no physical relation with any of his female students and no one is responsible for his death.
Officer-in-charge of Kotwali Police Station Abu Salam Miah said they were investigating the suicide notes.
The body bore injury marks on its private parts and the neck, he said.