Why Bollywood stars will not shave?

Come November and Bollywood hunks are seen sporting beard, but for a reason. Bollywood heroes will not shave and the rough and tough look is the look of the month, it seems. While our hunk Salman Khan is not shaving because he has to don the wrestler look in Sultan. He has even closely cropped hair style. Same way Aamir Khan has this pepper-salt stubble, which makes him look aged, is because of the role that he is playing in Dangal. He plays the role of a coach. The story is inspired from a real-life incident.