Farhan Akhtar will produce a film based on the world famous mathematician. the late Vashishtha Narayan Singh. Interestingly, the still untitled movie, will not feature Farhan in the lead role. His production house Excel Entertainment, which is a partnership venture with Ritesh Sidhwani, is only producing the film. The makers are looking at roping in either Aamir Khan or Akshay Kumar for their big venture. The biopic will be directed by Neeraj Pathak, who met Singh’s family in his hometown of Patna, Bihar on Tuesday. To bring in authenticity, Pathak has been writing the film for the last two years and taking as much time and care as needed.