The story is set against the backdrop of a little-known saga in 1930s British Colonial India (now Bangladesh) where a group of schoolboys and young women, led by a schoolteacher Masterda Surya Sen (Manoj Bajpai), dared to take on the Empire. Chittagong is the story of a diffident 14-year-old boy, Jhunku (Delzad Hiwale). Swept up into this seemingly impossible mission, the reluctant teenager battles with self-doubts to achieve an improbable triumph.
Jhunku, now a 23-year-old youth, is being chased by the Bengal police. He hides himself in a bunker with his childhood friend Aparna (Apu/Opu). While hiding, he begins to reflect on his past hopes and dreams. The story goes to a flashback to narrate the events that happened 10 years ago.
Bangladesh says Bhasan Char, a shifting silt island threatened by cyclones and disappearing land, could be a safe home for up to 100,000 Rohingya refugees ... “Nobody is safe here ... Razia Sultana, a Rohingya lawyer and founder of the Rohingya Women Welfare Society based in nearby Chittagong, said Bhasan Char would leave refugees even more vulnerable ... .