Kolkata/IBNS: RG Kar Medical College and Hospital principal Sandip Ghosh on Monday resigned from his post after the protests by the medical students against the rape and murder of a trainee doctor intensified.

Addressing the press, Ghosh said, "The sole demand of all people of the state was my resignation. So I am resigning willingly and not under pressure."

"Some people are distorting my statement and playing politics against me," he added.

However, the junior doctors, who are leading the protests, want a written resignation from Ghosh.

"Sandip Ghosh's resignation was one of the demands from us. We are not calling off our protests unless and until our other demands are met. We want justice," said a protester.

One person has been detained in connection with the suspected rape and murder of a second-year female medical student.

According to reports, the detained person was an outsider but he used to visit the hospital quite regularly.

Police are trying to find if any other person was involved in the incident.

The body of the 31-year-old post-graduate student had injury marks and was recovered under mysterious conditions.

The victim, who hailed from Sodepur near Kolkata, and was pursuing her post-graduation in Chest Medicine. She was on duty on Thursday night.

The initial autopsy report found her body had several injury marks.

The report states that the victim was bleeding from eyes, mouth and private parts. Injury marks were visible on the face, lips, neck, nails, stomach, right-hand ring finger, left leg and left leg ankle, reported The Telegraph.

West Bengal Chief Minister Mamata Banerjee has called the rape and murder of a trainee doctor "inhuman and deplorable crime" and said she has no objection to the Central Bureau of Investigation (CBI) probe into the incident that led the state government face the heat.