The Post office is a story of an eight-year-old boy who is terminally ill and is confined inside his house by the family physician. He sees the outside world only through his window. He talks to the passers-by and engages them in eager conversations. Flower seller's daughter Sudha has made a promise of bringing flowers for him. Watchman tells him that the big building with the flag is the king's new Post office. He imagines that he will receive a letter from the King and based on that he constructs an imaginary world for himself. He dreams of being the royal postman and awaits the king's visit.