Who is begum jaan?

Begum Jaan in the narrator’s aunt and the story's primary antagonist. A very beautiful woman who is married to a nawab (a Muslim nobleman), Begum Jaan finds that her husband has no interest in her and prefers to spend time behind closed doors with young men. To satisfy her sexual needs, Begum Jaan hires Rabbu, a masseuse, and pursues a clandestine lesbian relationship with her. Begum Jaan turns her attention to the child narrator when Rabbu goes away to visit her son, seeing the narrator as a sexual object to replace Rabbu.