The Kolkata Police arrested Professor Rana Roy on Monday, accused of issuing alleged threat letters to Jadavpur University Registrar Snehamanju Basu and the Joint Registrar, threatening them with dire consequences if any harm was made to Sourav Chowdhury.

Roy was arrested by the city police from a hotel in Bhubaneswar (Odisha) in another case related to molestation.

A molestation FIR was lodged at the Tala Police station in north Kolkata, for which the professor, a resident of Belgachia was arrested.

He was being brought to the city and would be produced in a court of law for judicial process later on Monday, sources added.

The Jadavpur PS has traced the professor who had purportedly "signed" the threat letters to Jadavpur University registrar and joint registrar Sanjay Gopal Sarkar, asking him to appear before them at the earliest.

The professor, who is presently posted at a Cooch Behar College, has denied any connection with the incident.

Both JU authorities and police had clarified earlier that the sender has no link with JU.

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The JU Registrar and Jt Registrar received an anonymous letter by post on Friday threatening them with dire consequences if any harm was caused to Sourav Chowdhury, one of the prime accused, who used to live in the JU hostel.

Chowdhury is a pass-out student of 2022.

He was arrested a day after a first-year 18-year-old student died following a fatal fall from the hostel's 2nd floor last month, allegedly due to ragging by senior and former students.

(With UNI inputs)