A night party arranged inside the boys hostel — just opposite the seminar hall in the RG Kar Medical College & Hospital where a postgraduate lady doctor was raped and murdered in the early morning of August 9, — is on the radar of the Central Bureau of Investigation, sources say.

According to sources, liquor flowed liberally in the party partaken by some interns close to Sandip Ghosh, former principal of RGKMCH, sources said. The interns have political connections and are allegedly engaged in running rackets of all kinds, extortion to trade in bio-medical, tell the protesting junior doctors of the Medical College."We have been telling from the beginning that the role of these students should be looked into … though we cannot say that they slipped out of the part and went to the seminar hall, we cannot rule out connection between that event and the incident of rape and murder … this must be looked into," one of the doctors said.

On whether the Kolkata Police had taken note of the night party when it was investigating the police insiders replied in the negative adding the police investigation from the beginning was shoddy and looked more like an effort to hide something than to reveal something.

Doubting the procedures followed by the police about the arrest of prime accused Sanjoy Roy, RGKMCH medical officer Dr Tapas Pramanik said "how can the police arrest him from inside the hospital premises … it is difficult to comprehend because by the time he was arrested the whole world had known and it was a big news in the media … and the criminal who has committed the crime is still sitting inside the hospital without fleeing away … it is hard to believe … it needs a thorough investigation."

Meanwhile, reports of threats coming in from various medical colleges where the junior doctors were being asked to join duty or face consequence.

Politically powerful union Leaders in Midnapore Medical Colleges, Burdwan Medical College and similar other institutions were reported to be threatening the junior doctors with dire consequences should they not resume work.

"They are telling us that they would not only stop issuance of registration but also get us physically assaulted if we do not resume work … said students of these two medical colleges even as they staged a sit-in demonstration at the office of the respective principals.