Bandh Darwaza.

Unable to conceive, Thakurain Lajjo enlists the help of her maid, Mahua, and approaches a demon named Nevla, who assures her that she will indeed give birth but if it's a daughter, then she must surrender her to him, to which she agrees. Shortly thereafter, she gives birth to a daughter, Kamya, but refuses to surrender it. Mahua poisons her, abducts Kamya, and takes her to Nevla, but Thakur Pratap Singh intervenes just in time, banishes the former to a coffin in a cavern, and rescues his daughter. 18 years later, Kamya herself will be compelled to approach and resurrect Nevla in order to win the love of Kumar - who she is obsessed with - and will do anything to make him her's forever.