Delhi's Tihar jail is like a city but it does not work in a vaccum, Sanjay Beniwal, the jail's Director General, said today in the backdrop of Delhi Chief Minister Arvind Kejriwal's allegation that he is not being administered insulin. His party has alleged a conspiracy to murder him. Speaking to NDTV in an exclusive interview, Mr Beniwal said Tihar has around 1,000 diabetics and they are given food and medication according to the advice of senior doctors, including those from AIIMS and Ram Manohar Lohia hospital.