Ram Singh, the prime accused in the December 16 Delhi gangrape, died due to hanging, a doctor who took part in the autopsy said today.
There were no external injury marks on his body, the doctor said on condition of anonymity.
A panel of three doctors conducted Ram Singh's post-mortem at the All India Institute of Medical Sciences (AIIMS) before the body was given to his family.
According to AIIMS, the final autopsy report will be given to police "within a couple of days".
Ram Singh reportedly committed suicide in Tihar Jail Monday morning. He was charged with the rape and murder of a 23-year-old paramedical student.
He was arrested Dec 17, a day after the brutal gangrape ignited protests all across India. A magesterial inquiry has been ordered into Ram Singh's death.