In the media-conference the guy came with the flag of his party to show that they are active and make everybody notice them.
This time they targeted Amitabh Bachchan, may be next time they will target somebody else. Actually Amitabh was a perfect person to make their target, as he is a world-famous actor, from North India and have good connection with X political party.
But to make a good party and good impression on people they need to work hard towards every common man. This silly-stupid stunt will not work boss.