Na Tum Jaano Na Hum is a 2002 Hindi-language Comedy Drama movie written by Pratibha Acharya and Arjun Sablok. The movie is directed by Arjun Sablok and produced by Kishore Biyani. A romantically inclined couple decide to get to know each other through letters without disclosing their identities. Na tum jaano na hum features Saif Ali Khan in the title role along with an ensemble cast including Hrithik Roshan, Esha Deol, Alok Nath, Smita Jaykar, Anang Desai and Achla Sachdev. The music was composed by Rajesh Roshan along with Anand Bakshi and Raju Singh. Cinematography was done by Manoj Soni and editing by Shirish Kunder. The film has a running time of 158 minutes. It was released on 10th May 2002. Na Tum Jaano Na Hum was made on a budget of ₹14 crore and at the box office it grossed only ₹8 crore. Distribution rights for the movie were acquired by PFH Entertainment Limited.