Irrfan Khan turns singer as he battles cancer

National award-winning filmmaker Vishal Bhardwaj, who has worked with actor Irrfan Khan in several films, says that he keeps talking to the actor who is recovering from cancer and is planning to start shooting film with his once he comes back. Earlier this year Vishal announced he would collaborate with the actor again. The filmmaker is also working on 'Patakha' that features Sania Malhotra and comedian Sunil Grover in pivotal roles.