F.I.R.

Naina, Sunder and Bablu are here at the station to file an FIR. Naina tells that she and Bablu are in love and suddenly Bablu has started behaving like a mad man. This was due to a hard hit by a ball to his head. When the batsman is told that the six he hit damaged Bablu's head, he collapses. He also reveals that he is not a good batsman and hasn't scored a total of six runs in his career. How will the inspector get to the bottom of the case?