Who among the following directed the film 'Subarnarekha' made on the partition of India?

The film 'Subarnarekha' (1965) was directed by the legendary filmmaker Ritwik Ghatak. It is the final part of his celebrated "Partition Trilogy," which also includes Meghe Dhaka Tara (1960) and Komal Gandhar (1961).

The film deals with the socio-economic consequences of the Partition of Bengal in 1947, focusing on the lives of refugees and the loss of roots, identity, and moral values. While Satyajit Ray and Mrinal Sen were his contemporaries in the Indian New Wave (Parallel Cinema) movement, Ghatak's work is uniquely characterized by its visceral and haunting portrayal of the trauma of displacement. Bimal Roy was also a prominent director of the era known for social realism, but he did not direct this film.