Kolkata, Feb 3 (IANS): A college professor in West Bengal was thrashed inside the premises more than once by students allegedly owing allegiance to the Trinamool Congress Tuesday for a Facebook post critical of the party's students' wing.

Amit Roy, associate professor and head of the department of economics at Ghatal Rabindra Satabarsiki Mahavidyalaya in West Midnapore district, later filed a police complaint.

The crestfallen professor said he was first attacked outside the staff room and then assaulted inside the room by students for alleging in his Facebook wall two weeks back that the Trinamool Chhatra Parishad had "captured the students' council undemocratically".

"I was sitting in the college staff room, when the students' council general secretary called me out. I found some boys standing outside, who showed me a printout of my Facebook post and asked me why I had posted my personal comments about the college elections," said Roy.

Without allowing him to respond, Roy said the students started beating him up and tore his sweater. But as other professors and college guards rushed in, the attackers dispersed and Roy returned to the staff room.

But the respite was temporary as the students forced themselves inside the staff room after 10 minutes, dragged him out of the chair and again beat him up.

"I fell on the floor. The general secretary was there. I don't know the rest of the students," he said.

Later, as police arrived at the spot, Roy lodged a complaint.