Posto is a 2017 Bengali film directed by Nandita Roy and Shiboprosad Mukherjee. The film features Soumitra Chatterjee, Jisshu Sengupta and Mimi Chakraborty. The film was released on 12 May 2017 in 100 theatres across West Bengal, India and overseas on the same day. The film received critical acclaim as it portrayed the relationships in a very subtle way. The film is remade in Hindi language by the same director-duo Nandita Roy and Shiboprosad Mukherjee named Shastry Virudh Shastry (2023) which is set to release on 3 November.

Shiboprosad Mukherjee is an Indian film director, writer and actor. Collaborating with Nandita Roy, he made his directing debut with the film Icche, which garnered both critical acclaim as well as commercial success. The director duo is known for making socially relevant films which are also entertaining to the viewers. They have also directed some of the popular most new age Bengali films like Praktan, Bela Seshe, Icche, Muktodhara, Accident, Alik Sukh and Ramdhanu, Haami, Konntho, Gotro which were critically acclaimed as well as enjoyed commercial success. He also serves as a partner at Windows Productions. His film Praktan, bagged multiple National Awards and Alik Sukh was premiered at the Marche du Film section in Cannes Film Festival in 2013. His film Konttho was selected as the Indian entry for the Best International Feature Film at the 92nd Academy Awards.