KOLKATA: Kolkata Police on Sunday summoned TMC MP Sukhendu Sekhar Roy, hours after he demanded that the CBI interrogate Kolkata Police commissioner and former principal of RG Kar Medical College and Hospital.

Roy had earlier in the day called upon the Central Bureau of Investigation, which is probing the rape and murder of a woman doctor at state-run RG Kar MCH, to act fairly and demanded the custodial interrogation of former principal of the medical establishment and the CP to know "who and why floated the suicide story".

Kolkata Police asked Roy to appear before its officers at its headquarters in Lalbazar at 4 pm on Sunday for allegedly posting wrong information regarding the incident, a police source said.

"He has been asked to come to Lalbazar at 4 pm. This is related to some of his posts on social networking sites," he said.

Asked if the summons had anything to do with Roy's comment on the CP, the source declined to reply but said that the TMC MP had, a couple of days back, made a comment on sniffer dogs being taken to RG Kar MCH by Kolkata Police during their investigation into the doctor's death.

The parents of the deceased woman doctor claimed that they were informed over the phone on August 9 morning that their daughter died by suicide at the hospital, where she worked.

Kolkata Police Commissioner Vineet Goyal has stated that no one from the police force had called up the parents to say that their daughter died by suicide.

Former RG Kar Medical College and Hospital principal Sandip Ghosh was interrogated by the CBI for long hours on Friday and Saturday as well as on Sunday in connection with their probe into the doctor's death