Aditya 369 is a 1991 Indian Telugu-language science fiction film written and directed by Singeetam Srinivasa Rao. It is considered to be the first time travel film made in Indian cinema. The film stars Nandamuri Balakrishna and Mohini while Amrish Puri, Tinnu Anand, and Suthivelu play supporting roles. The music was composed by Ilaiyaraaja and Jandhyala wrote the dialogues. The film was produced by S. Anitha Krishna on Sridevi Movies banner with S. P. Balasubrahmanyam as the presenter. Upon release, the film received critical acclaim and was a commercial success. It received two Nandi Awards. Aditya 369 is considered a landmark film in the science fiction genre in Indian cinema. The film explored dystopian and post-apocalyptic themes in a satirical manner.Inspired by the H. G. Wells' novel The Time Machine (1895) which he read as a student, Singeetam Srinivasa Rao started working on a script in which the protagonist travels to the past and the future. He opted for Sri Krishnadevaraya's reign for the past period. After researching at the American Library in Madras about the future, he finished the script.Made on a budget of ₹1.52 crore, principal photography of the film took about 110 days. Sets related to Krishnadevaraya's era were built at Annapurna Studios in Hyderabad. Filming also took place at VGP Golden Beach and Vijaya Vauhini Studios in Madras. Forest scenes were shot at Talakona in Andhra Pradesh. Three cinematographers worked for the film and shot different time periods. P. C. Sreeram shot the scenes related to present-day but he opted out due to ill-health. V. S. R. Swamy and Kabir Lal performed rest of the cinematography. It was dubbed into Hindi as Mission 369 and into Tamil as Apoorva Sakthi 369.