The story revolves around Pratha, who was supposed to marry Yash, the Sheshanag, but she realizes during the wedding that her heart belongs to Rishabh, whom she left in the past. Yash, being a kind-hearted person, decides to sacrifice his love for Pratha and takes a vow of celibacy, freeing Pratha from the wedding. Pratha returns to Rishabh, but he has already married Reem.
However, Rishabh soon realizes that he still loves Pratha and cannot be with Reem. He proposes a solution where his brother Ritesh marries Reem, and Rishabh reunites with Pratha. Meanwhile, Pratha receives a book called "The Book of the Sheshanaga" from a mysterious figure named Farishta, who claims to be an angel. The book hints at a new story beginning for Pratha, where she will have to fight against demons to protect her love and the country.
Here are the key facts extracted from the text:
1. A wedding ceremony is taking place between the Sheshanag and the Sheshanagin.
2. Pratha, the Sheshanagin, is having second thoughts about the wedding.
3. She reveals that her heart belongs to Rishabh, not the Sheshanag.
4. The Sheshanag decides to call off the wedding and set Pratha free.
5. The Sheshanag takes a vow of celibacy to release Pratha from the wedding.
6. Reem and Rishabh are getting married.
7. Pratha returns and tries to stop the wedding, but it's too late.
8. Rishabh reveals that he didn't want to marry Reem and still loves Pratha.
9. Reem agrees to marry Ritesh instead.
10. Pratha meets a stranger named Farishta who claims to be an angel.
11. Farishta gives Pratha a book called "The Book of the Sheshanaga".
12. Pratha learns that a seventh demon is going to attack Rishabh.
13. Pratha rushes to save Rishabh, but it's unclear if she arrives in time.
Note: The text appears to be a script or transcript of a drama or TV show, and some of the facts may be part of the storyline rather than objective facts.