The story revolves around Khushboo, a village girl married to Amit, who lives with his mother Nirmala and wife Shivangi in a big city. Shivangi, who is revealed to be a Naagin (a serpent), is hiding her true identity from Amit and Nirmala. Khushboo discovers Shivangi's secret and tries to expose her, but Shivangi attempts to kill her. Khushboo is saved by a mysterious old woman who gives her an amulet and tells her to come to her temple for help. Meanwhile, Amit and Nirmala take Shivangi to the doctor, and Khushboo is thrown out of the house. The old woman reveals to Khushboo that she has special powers and is the daughter of Nagraj, a man who was killed by a Tantrik (a magician) named Malik. The story then takes a turn as Amit and Nirmala discover the truth about Shivangi and the Tantrik, and a final confrontation ensues.
Here are the key facts extracted from the text:
1. Amit is married to Khushboo and lives with his mother Nirmala.
2. Khushboo is a village girl who is not familiar with city life.
3. Amit and Nirmala think Khushboo is weak and not important.
4. Khushboo discovers that Shivangi, who lives in the house, is a serpent.
5. Khushboo tries to expose Shivangi's true identity to Amit and Nirmala.
6. Shivangi attacks Khushboo and tries to bite her.
7. A fire comes out of Khushboo's body and attempts to burn the serpent.
8. The serpent retreats back and comes in the form of a monkey.
9. Khushboo has some power and is not just a weak girl.
10. Shivangi's past is revealed, showing her childhood with her father Nagraj.
11. Nagraj and Shivangi's mother were killed by a man named Malik.
12. Shivangi was given powers by her mother and seeks revenge.
13. Shivangi's true identity as a serpent is revealed to Amit and Nirmala.
14. A tantrik is revealed to be the one controlling Shivangi.
15. The tantrik is killed by Amit using a trident given by Gurudev.
16. Shivangi is freed from the tantrik's control and is safe.