Sardar Udham is a 2021 Indian Hindi language epic biographical historical drama film directed by Shoojit Sircar, and produced by Rising Sun Films in collaboration with Kino Works. The screenplay is written by Shubhendu Bhattacharya and Ritesh Shah, with Bhattacharya also writing the story based on team research, and Shah also writing the dialogues, while playing a supporting role. Based on the life of Udham Singh , who assassinated Michael O'Dwyer in London to avenge the 1919 Jallianwala Bagh ... Learn about Sardar Udham Singh , whose unwavering resolve led him to avenge the Jallianwala Bagh tragedy. Discover the life and sacrifice of this iconic Indian patriot. ↑ A Pre-Meditated Plan of Jallianwala Bagh Massacre and Oath of Revenge, Udham Singh alias Ram Mohammad Singh Azaad, 2002— A Premeditated Plan, Punjab University, Chandigarh, 1969, p. 24, Raja Ram. Udham Singh was an Indian revolutionary freedom fighter who sought revenge for the 1919 Jallianwala Bagh massacre by assassinating former lieutenant governor of Punjab Michael O’Dwyer in 1940.