Amazon Prime Video has launched the trailer of Sardar Udham, Shoojit Sircar's film starring Vicky Kaushal as the titular revolutionary.

In 1919, the Jallianwala Bagh massacre in Amritsar fuelled revolutionary feelings across British India. The trailer follows Udham Singh, 21 years after the incident, arriving in London and planning an assassination of Michael O'Dwyer, the former lieutenant governor of Punjab. Udham Singh's modus operandi is traced in detail on the background of period London in the throes of WW2. Intermittently, the trailer flashes back to India, charting key events in the aftermath of the 1919 massacre.

"The story of Sardar Udham Singh is one that enthralled and inspired me," said lead actor Vicky Kaushal. "It represents the strength, pain, passion, extraordinary courage and sacrifice, and many such values that I have tried to do justice through my character in the film. The role called for a lot of physical, and even more mental preparation to get into Udham Singh’s shoes and bring to life the story of a man whose heroism and grit stand unmatched."

Sardar Udham is releasing on Amazon Prime Video on October 16. This is Shoojit's second release on the platform after last year's Gulabo Sitabo.