An early plane crash sets a dramatic stage: a small child survives while his parents perish, and Balakrishnan, Biju Menon is taken in by his maternal uncle Appukuttan Nair, Vijayaraghavan. The family’s wealth is said to rest with Balakrishnan, and an old astrologer prophesies that his fortune will only bloom if he marries a young woman whose star is Chothi. As Balakrishnan grows, he is shown as someone who struggles at every turn, never quite finding lasting success in anything he attempts.
He falls in love with Maya, Raai Laxmi, the daughter of a wealthy Mumbai-based businessman named Raj Kumar Pattala, Mohan Sharma. Pattala objects to the match, and Maya elopes with Balakrishnan, sparking a new set of confrontations. To smooth the path, Advocate Lakshminarayanan alias Lakshmi, Baburaj, tries to persuade Appukuttan to bless the union, and he agrees to visit the couple. But on the second day of the marriage, Maya leaves Balakrishnan after a misunderstanding and returns to Mumbai.
Balakrishnan doesn’t want Appukuttan to know that Maya left, so he hires a woman named Mayamohini to pose as his wife. Mayamohini is actually Mohanakrishnan, a man who has been hunted by the police and was caught in a trap laid by Pattala’s manager Sanjay. Mohan reveals his true identity to Balakrishnan and agrees to help him in his quest to find his father, Sankaran Potti, Nedumudi Venu.
The two men travel to Mumbai, where they unexpectedly run into Maya again, who is revealed to be a club dancer named Kathreena. She explains that Pattala is a wanted international criminal who had cheated her years earlier when she was drawn into his company. A flashback shows that Sankaran Potti was killed by Pattala and Sanjay to secure their own wealth and control.
Back in the present, Mohan, dressed as Mayamohini once more, is invited to Pattala’s room, where the criminal tries to spend time with him — or with her — but the law closes in as the cops arrive to arrest Mohan. Mayamohini then drops the disguise and reveals her true identity to Pattala, joining Balakrishnan in confronting Pattala, Sanjay, and their henchmen. In the ensuing struggle, one of Pattala’s men tries to kill Balakrishnan, leading to Sanjay’s accidental death. Mohan then kills Pattala, avenging his father’s death.
Mohan is later released from the charges against him. Meanwhile, Lakshmi’s family comes to seek an alliance with Mayamohini, unaware of the broader truth behind Mayamohini’s identity. Balakrishnan’s hopes rise again when his sister’s star is revealed to be Chothi, a revelation that brings him renewed joy and a sense that the long, tangled journey may be moving toward a kind of final resolution.
