"At the same time, there is need to exercise calm at this juncture and for everyone to work together to improve the safety and security environment."

In the meantime, the victim has been promised the best possible medical care, Shinde said.

A physician described the woman's condition Saturday as better than a day earlier, but said there was still a risk of infection. She is receiving psychological as well as medical care, he said.

Following the brutal assault, the country's human rights body shot off notices to city police and federal authorities, demanding an explanation.

"The incident has raised the issue of declining public confidence in the law and order machinery in the city, especially in its capacity to ensure safety of women, as a number of such incidents have been reported in the national capital in the recent past," the National Human Rights Commission said in a statement Tuesday.

Home Secretary R. K. Singh announced the suspension of five police officers in the wake of Sunday's rape.

Meantime, some observers say anti-women acts in India stem from the country's largely patriarchal social setup.

Indians' preference for sons over daughters, for example, has manifested itself in a worrisome population imbalance. The 2011 census of the world's second-most populous nation recorded an alarming drop in the percentage of girls among country's preschoolers.

For every 1,000 boys up to 6 years old, the census counted 914 girls, a drop from 927 a decade ago. It's illegal in India to abort a child because of its sex, but such abortions happen, often aided by illegal clinics.