Season 5
The story starts in the era where eagles had the power to shape shift. When the eagles attacked the snakes, Lord Shiva blessed the shapeshifting ability to snakes and named the first naagin to get this power, Naageshwari. Naageshwari also gained the title of Sarvashresth Aadinaagin. She was in love with a naag Hriday while an eagle Aakesh was obsessed with her. Aakesh killed Hriday with his army and a devastated Naageshwari stabbed herself to death. On completing the story, Dev is brought back to life and he reunites with Brinda. Naageshwari says it's time for her next birth.3 yugas Later
Naageshwari is reincarnated as Bani. She meets Jay Mathur and they feel a connection. Veeranshu "Veer" Singhania, an eagle, gets attracted to Bani while she immensely hates him. Bani and Jay perform a tandav, thus remembering their past lives where they learn that Bani is Sarvashresth Aadinaagin Naageshwari's reincarnation and that Jay is Hriday's reincarnation and Veer is Aakesh's reincarnation. Bani gets married to Veer and Jay is revealed to be an antagonist who wants to gain Bani's powers. Bani wants to kill Veer's family but slowly starts to fall in love with him and soon Veer also remembers his past life. Bani releases Veer's mother who has been locked in a basement but soon Bani realizes that her mother-in-law is Maarkaat, Aadinaagin's greatest enemy. Bani realizes that Jay being the associate of Maarkaat and learns Jay being Veer's half brother. Bani and Veer team up to defeat Maarkaat and Jay but later Jay kills his own mother and gains the title of Maarkaat who then wishes to defeat Bani and Veer but Bani and Veer face Jay till the very end.