A multi-disciplinary team of specialists are trying their best to stabilise an Indian rape victim, who now remains in critical condition.

The 23-year-old student, whose attack sparked protests across India, was transferred from the Safdarjung Hospital in Central Delhi to Medanta Hospital in Gurgaon, close to the city's international airport, before being flown to Singapore and admitted to Mount Elizabeth Hospital.

Dr Kelvin Loh, chief executive officer, Mount Elizabeth Hospital said: "As at 7pm (Singapore time) the patient remains in an extremely critical condition. She is under treatment at Mount Elizabeth Hospital's Intensive Care Unit.

"Prior to her arrival, she had already undergone three abdominal surgeries, and experienced a cardiac arrest in India.

"A multi-disciplinary team of specialists is taking care of her and doing everything possible to stabilise her condition," he said in a statement. Local television Channel NewsAsia had earlier reported that the patient was brought to the hospital's Intensive Care Unit at 9.05 am in extremely critical condition.

The hospital is working with the Indian High Commission, and has requested that the privacy of the patient and the family be respected.

The Indian government had announced it was setting up a special commission of inquiry after the gang-rape on Dec 16 when the woman was allegedly tricked into boarding a bus by six men who then took turns to assault her.

The group also attacked her with an iron bar before throwing her out of the vehicle, along with a male companion.

Six suspects have been arrested in connection with the attack and have been remanded in custody.