Indian students Sunday continued their week-long protest against a horrifying gangrape of a young woman last Sunday and asked Congress President Sonia Ganghi to immediately intervene.

Students rejected police demand to evacuate from the India Gate in central Delhi where they have been staging protests for days demanding justice for a 23-year medical student, who was repeatedly raped and brutalized by six men on a moving public bus last Sunday in southern Delhi, which has rocked the nation over the past few days.

Angry students vandalized buses which were waiting for them to leave the site which saw a huge rally by students and clashes between them and police, who used tear gas and water cannon to dispel them as they neared the presidential palace.

Gandhi promised to support the students' demand after some waited outside her residence throughout a chilly night. She said the Congress-led government is "serious" about the case.

However, anger of the students seemed not alleviated by the promise, as they vowed to stage another huge protest Sunday.

Some opposition figures and social activists said they would also join the students.

Thousands of young men and women Saturday laid siege around Raisina Hill, the symbol of power of India where the presidential palace and some major ministerial offices are located.

Meanwhile, police have collected testimony from the victim of the gangrape who is fighting for her life in a Delhi public hospital. She said the six men cold-bloodedly planned the gangrape as she and her boyfriend boarded their bus. They were both brutalized for half an hour on the moving bus before being stripped and thrown off the bus.