Nagina
a.k.a. : Nagina, Naginaa, Nagin 2

Rajiv comes from a very wealthy family, and lives in a palatial home with his mother, who would like him to get married to a beautiful young woman named Vijaya Singh, the only daughter of Thakur Ajay Singh. But Rajiv is in love with a woman named Rajni, who is an orphan and has no family background. When Rajiv mentions this to his mother, she opposes this marriage, but relents when she meets with Rajni and sees that she is a indeed a beautiful woman. Both get married and live harmoniously for quite some time - until the arrival of Bhairavnath a religious man, who is capable of controlling snakes. He informs Rajiv's mother that the woman, Rajni, is a shape-shifting venomous snake who has married Rajiv to avenge the death of her spouse years ago when Rajiv was a child. In doing so, Bhairavnath has a secret agenda of his own.