Pune: Journalism students at an institute here have claimed they were threatened against inviting JNU students' union president Kanhaiya Kumar for a discussion by a suspected activist of BJP's youth wing, police said on Thursday.

A non-cognisable offence has been registered against one Omkar Kadam, who is believed to be a worker of Bhartiya Janata Yuva Morcha (BJYM), after a complaint was lodged against him by students of Ranade Institute last evening, an official attached with Deccan Gymkhana police station said.