The film is based on the concluding part of the novel "Aparajito" by Bibhutibhushan Bandopadhyay, and sequel to the classic "Apu trilogy" by Satyajit Ray.
Mitra has directed 7 feature films including the Aagunpakhi and Kakababu trilogy by Sunil Ganguly, and "Chorabali" a whodunit thriller inspired by Agatha Christie's work.
Subhrajit researched, scripted and Directed "Wangala" – a documentary film on Garo tribes in the North east of the Himalayan foothill range, it was well received globally.
He has directed a series on the lesser-known tribes of the Himalayas, titled "Himalayas- unsung, unseen" for National Geographic Channel.
Mitra has made a documentary on the 1971 India–Pakistan war and Bangladesh liberation for BSF, produced by Ministry of Home Affairs, India.
Subhrajit has made a docu feature on Jesus Christ’s alleged life in India after his proclaimed resurrection, titled "The unknown stories of the Messiah".