In a shocking incident, a man in a fully drunken state has allegedly bitten the finger of a police constable who was on duty at One Town Police Station in Khamman on Tuesday. Masthan, a handicapped man argued with the police personnel. While the constable was filing the case, Masthan turned as psycho and then bit on Mansur Ali's thighs and fingers. ASI Nageshwar Rao was shocked by the entire incident and tried to hold Masthan. It is learnt that this is not the first time for Mastan to do like this. Earlier, there were many cases filed on Masthan.