MUMBAI, Oct. 1 -- In a career spanning nearly five decades, Mithun Chakraborty has delineated many roles - a partially clothed tribal, an action hero, a dancing star. He stepped into Bollywood at a time when Amitabh Bachchan was the face of the action hero (Zanjeer, 1973) and Jeetendra the dancing star, popularly known as Jumping Jack....