What is the plot of the Sardar Udham ? The plot is: A young Sardar Udham was left deeply scarred by the Jallianwala Bagh massacre. He escaped into the mountains of Afghanistan, reaching London in1933-34. There, Udham spent the most decisive 6 years of his life, re-igniting the revolution. Discover reviews, ratings, and trailers for Sardar Udham on Rotten Tomatoes. Stay updated with critic and audience scores today! Sardar Udham is a 2021 Indian biographical historical drama film based on the life of Udham Singh, who assassinated Michael O'Dwyer in London to avenge the Jallianwala Bagh massacre. The film, directed by Shoojit Sircar and starring Vicky Kaushal, received critical acclaim and won several awards. Sardar Udham : Directed by Shoojit Sircar. With Vicky Kaushal, Shaun Scott, Stephen Hogan, Amol Parashar. A biopic detailing the 2 decades that Punjabi Sikh revolutionary, Udham Singh, spent planning the assassination of the man responsible for the Jallianwala Bagh massacre.