This is about actors who played bit roles or villain's roles in Hindi films.
Ajit was a villain who cracked one-liners with aplomb, and became the most "joked-about" villain due to them. Mona darling, Raabert, and Michael, tum cycle par jao..etc. were the stuff of legend.
Another actor (actually two- Keshto is with Utpal Dutt) who always made a mark, usually as a drunkard, with his characteristic hichki, was Keshto Mukherjee. The scene below is with another actor with terrific comic timing, Utpal Dutt, who brought the house down in Golmaal with his role of a hater of clean-shaven guys.