Shaitani Ilaaka Devils Domain is a 1990 Hindi horror film presented by the Ramsay brothers.
Roma, and their sixyearold daughter, Anju. They have retained a governess, Shalaka, for Anju. Anju seems to be a happy child with one exception. She experiences strange convulsions and horrible nightmares every Amavasya night. Thakur decides to bring her to Dr. Yograj, a medical man who has attained Siddhi through rigorous spiritual training. Dr. Yograj examines Anju from a medical standpoint, but also notices strange telekinetic events when Anju is in his office. Later, at the home, he observes phenomena that strongly indicate a poltergeist. When he talks to Shalaka, she firmly snubs him.Shalaka is outraged at Anjus removal. She steps way out of line and demands to know Anjus whereabouts. Roma refuses and puts her in her place, whereupon Shalaka transforms into a hideous witch, Lalbai, and attacks Roma. She reveals she has served Shaitan for ages, and when Thakurs ancestors used various magic incantations to defeat Shaitan, she infiltrated Thakurs household as a governess. She hopes to use Anju, the living descendant of Shaitans enemies, as the final sacrifice to liberate Shaitan. ........
Source: Wikipedia