It's a political satire which revolves around the annexation of Awadh and the decaying of the House of Wajid Ali Shah and their inability to stand up to the creeping moves of the East India Company.
What stood out for me in this film is the performance of Amjad Khan as Nawab Wajid Ali Shah. After having seen him play the rough characters in various films, to see him capture the nuances of a very sensible man was remarkable. Only a master like Ray could have got such a masterful performance out of Amjad Khan.