Bunker
Lt. Vikram Singh is a lone survivor in a Bunker, at Poonch (Kashmir), after being hit by a mortar shell during a ceasefire violation.
Starring Abhijeet Singh, Arindita Kalita, Dileep Singh Kushvaha, Devavrata Ronsa, Arnav Timsina, Yashavi Varia, Gaurav Gupta
Watch "Bunker" on HBO Max released in 2020. It's a drama and war movie, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of movie.