The victim of a brutal gang rape that sparked massive protests in India arrived in Singapore for treatment Thursday morning.

"The patient's condition remains extremely critical as before," said Dr. Kelvin Loh, CEO of Mount Elizabeth Hospital. "Prior to coming to Singapore, she had three abdominal surgeries and cardiac arrests in India. Currently, we have a multidisciplinary team of specialists who are taking care of her and doing everything possible to stabilize her condition."

The 23-year-old woman spent days in intensive care after what police said was a rape and beating December 16 on a moving bus in New Delhi.

Widespread anger over the incident prompted massive anti-rape protests in the Indian capital over the weekend. Riot police surrounded downtown streets as protesters plan to take to the streets again Thursday.

Demonstrators are demanding the government to set up fast-track courts for speedy trials of rape cases in the country, said Ravi Rai, a student representative.

They are also seeking the dismissal of the New Delhi police commissioner for the crackdown on Sunday's protests.

"Despite massive protests across Delhi and India, the government's assurances have been hollow and smack of tokenism," said Neha Kaul Mehra, a student participant. " Rather, the response -- the crackdown -- has been feudal."

Police prohibited demonstrations in key government districts, but lifted those lockouts Wednesday. Traffic appeared back to normal at Raisina Hills -- home to the seat of Indian power -- and police removed security barriers from most roads.

New Delhi's metro rail reopened its services around central parts of the city. Services were shut down after protests swelled Saturday and Sunday.

The Cabinet plans to set up a commission to look into the rape and suggest measures to improve women's safety. The commission has three months to submit its report to the government.

CNN's Harmeet Shah Singh reported from New Delhi. Elizabeth Neisloss reported from Singapore.