1971: Beyond Borders is a 2017 Indian Malayalam-language war film written and directed by Major Ravi. It is the fourth installment in the Major Mahadevan film series, with Mohanlal reprising his double role as Colonel Mahadevan and a new character, Major Sahadevan. It also features Arunoday Singh and Allu Sirish. The film, set in two time periods, is based on the Indo-Pakistani War of 1971 and act as both prequel and follow-up to the series. Mohanlal's and Sirish's characters were modeled on Hoshiar Singh Dahiya and Arun Khetarpal, both of whom were awarded the Param Vir Chakra for their roles in the 1971 Indo-Pakistani War.Dialogues were written by Shiju Nambyath for the script of Ravi. The film was shot by Sujith Vaassudev, while Gopi Sunder provided the score. Siddharth Vipin, Najim Arshad, and Rahul Subramanian composed the soundtrack. Principal photography commenced on 31 October 2016 in Suratgarh, Rajasthan and completed on 5 February 2017 in Georgia. 1971: Beyond Borders released on 7 April 2017 in India.