Actor R. Madhavan took to social media on Sunday to inform his fans that he is back to the shooting floor in Mumbai. ‘Mumbai shoot… Feels great to be back on the floors,’ Madhavan tweeted along with a photograph of himself standing in front of a mirror. However, the actor did not disclose which film or project he is shooting for. On the work front, Madhavan turns director with the upcoming film Rocketry: The Nambi Effect. The film is based on the life of framed ISRO scientist and aerospace engineer S. Nambi Narayanan. Apart from directing the film, Madhavan also essays the protagonist. (IANS)