Kolkata/IBNS: Civic volunteer Sanjoy Roy, who was arrested by the Kolkata Police swiftly after the rape and murder of a trainee doctor at Kolkata's RG Kar Medical College and Hospital was discovered, claimed he was being framed in the case and will plead innocence in the court, media reports said.

Sanjoy, the first and only arrested person in the rape-murder case so far, has recently undergone a polygraph test, which is also known as the lie-detector test, where the Central Bureau of Investigation had asked him 10 questions.

When a CBI officer asked him what he did after murdering the doctor, Sanjoy reportedly stopped him to claim he did not commit the crime.

Sanjoy claimed he discovered the doctor was in a pool of blood and unconscious when he entered the seminar hall, the crime scene.

After seeing her in that condition, Sanjoy claimed he "panicked and ran out of the seminar hall".

When he was asked why he didn't inform the cops, Sanjoy said no one would have believed him. Sanjoy claimed he was being framed in the case.

Junior doctors across West Bengal are on an indefinite strike after a 31-year-old trainee doctor was brutally raped and murdered at Kolkata's state-run RG Kar Medical College and Hospital.

Kolkata, its neighbouring districts have been witnessing relentless, unprecedented protests after the post-graduate medical student was raped and murdered at her workplace on the intervening night of August 8 and 9.

Junior doctors and protesters suspect the crime was committed by more than one and an attempt to tamper with evidence and cover up the crime is at play right from the beginning.

The Mamata Banerjee government is now in a crisis as people's protests roil the state challenging the state administration, which was marred by political violence and rampant corruption cases for more than a decade now.

The administration's swift run for the last rites of the victim and demolition work near the crime scene have raised some uncomfortable questions for the state administration, which is helmed by Chief Minister Mamata Banerjee who holds both the police and health portfolios.