He also said that the real tribute to the 23-year-old victim will be to ensure maximum punishment to the culprits.
In a message to the family, he said, "A real tribute to her will be to ensure maximum punishment to the culprits.
"I pledge to work to strengthen the laws and ensure that such an incident never gets repeated again," he said.
The girl, who was gang-raped and brutally assaulted by six men in a moving bus in south Delhi, died in a Singapore hospital early this morning after battling for life for the past 13 days.
