Sleuths from the Central Crime Branch (CCB) have arrested an ENT specialist working with a private hospital in Shivamogga for colluding with the kingpin of the answer script tampering case in the Rajiv Gandhi University of Health Sciences (RGUHS). According to the police, investigations have revealed that P. Amith helped three postgraduate medical students cheat and pass their examination. They had recently arrested M. Venkataraman, a doctor from Tamil Nadu, based on the information provided by the kingpin in the case, Bhagirath Singh.