New Delhi: Tihar Jail authorities have filed their response in a Delhi court on the application filed by one of the death row convicts in the Nirbhaya case -- Vinay Sharma -- claiming insanity and informed that there is no medical history of mental instability.

Public prosecutor Irfan Ahmad, appearing for Tihar Jail on Saturday, appraised the court of additional sessions judge Dharmender Rana that convict Vinay injured himself and that the prison has CCTV footage of the incident.