India, Oct. 12 -- Three persons have been arrested in connection with Friday night's alleged gangrape on an MBBS student from a private medical college at Durgapur, West Bengal chief minister Mamata Banerjee said on Sunday afternoon.

"We take cases like these very seriously in Bengal. Three persons have been arrested and investigation is on. But how could the student leave the campus at night? It is a forest area. The private medical college must take care of its students," Banerjee told reporters at the Kolkata airport before leaving for flood-hit north Bengal.

To be sure, the crime was committed around 8 pm on Friday and the survivor's father said his daughter's classmates called him up around 9.30 pm.

The survivor, a resident of Jal...