We all know that Dhanush is currently working hard for his debut Hindi film Raanjhnaa opposite Sonam Kapoor. The film is set in the backdrops of Varanasi and Anand L. Rai is the director. Now we hear that the actor might play the lead role in award-winning director Manish Jha's biopic on Dashrath Manjhi (also known as Mountain Man), who carved a 360-foot-long road by cutting through a mountain in the Gehlour hills.