NEW DELHI (AP) — India's army and navy canceled New Year's celebrations on Monday out of respect for a New Delhi student whose gang-rape and murder has set off an impassioned debate about what the nation needs to do to prevent such a tragedy from happening again.

Protesters and politicians have called for tougher rape laws, major police reforms and a transformation in the way the country treats its women.

"To change a society as conservative, traditional and patriarchal as ours, we will have a long haul," said Ranjana Kumari, director of the Center for Social Research. "It will take some time, but certainly there is a beginning."