<span class=normal>Whats common to Salman Khan, Sushmita Sen and Kalki Koechlin, besides the fact that they all are residents of the galaxy called Bollywood? Well, the common thread that binds all of them is their love for the art of charcoal paintings. While Sushmita Sen and Kalki may have done it for their films, Salman Khan stuck to his guns of doing the same for the cause that is closest to his heart more than anything else … you guessed it right…his NGO called Being Human! </span>