Known for Bajrangi Bhaijaan and Ek Tha Tiger , Kabir Khan uses his documentary roots (he previously made The Forgotten Army documentary in 1999) to ground the action. The battle sequences in the jungles of Imphal have a gritty, hand-held realism. However, compared to Hollywood war epics, the budget shows — the CGI and scale feel modest.
The story follows a young modern-day man in Singapore who discovers his great-grandfather’s diary. This unlocks flashbacks to 1940s Burma, Malaya, and Northeast India. That structure helps connect younger audiences to the past, but some critics felt the modern segments felt thinner compared to the visceral war scenes. The Forgotten Army - Azaadi Ke Liye -2020- S01 ...
It sounds like you're referring to (2020), the Amazon Prime Video series directed by Kabir Khan . Known for Bajrangi Bhaijaan and Ek Tha Tiger