Bollywood star Sanjay Dutt has joined hands with businessman Raj Kundra to launch a mixed martial arts (MMA) fighting league called SFL.The first 'Super Fight League' (SFL) event, being promoted by Dutt and Kundra's company Super Fight Promotions, will be held in Mumbai on March.For regular updates on the latest happenings in Bollywood kindly subscribe www.youtube.com/the bollywoodshow