Synopsis
Sivagami, a polite lady has an elder brother named Rajarajan. He has married an arrogant lady Bairavi. Initially, both brother and sister lived in the same house. Sivagami and Bairavi were pregnant at the same time. Bairavi wishes for a baby boy, but she gives birth to a baby girl. While Sivagami gives birth to a baby boy. To fulfill Bairavi's wish, Sivagami swapped the babies. Then Bairavi accuses Sivagami because of her aunt Kanchana's plan for trying to amass the family property. So she always tortures Sivagami. When their children became adults, Sivagami's daughter, Thulasi, and Bhairavi's son, Vishwa.
Bairavi verbally abuses Sivagami's daughter, not knowing that she is her biological child. The final injustice is when Bhairavi in a fit of anger on Sivagami, throws a bowl on her and hits Thulasi. The fight occurs when Bairavi says to take a part of the property for her son which prompts Sivagami to do the same. This incident made Sivagami and her husband Parthiban leave the house. [4]
After 20 years, Bairavi and Sivagami's children were grown up as Thulasi and Vishwa. Thulasi – a naughty, fun, and brave girl, who grew up with Sivagami and Parthiban. Where Vishwa – a calm and innocent boy, grew up with Bairavi and Rajarajan. Thulasi and Vishwa continually tease each other in the form of games. Vishwa has already confirmed to his mother that he will never fall for Thulasi. But day by day it fails. Also, Bairavi and Thulasi meet in any place, Thulasi will start to tease her in a comical way. Without knowing that Thulasi was her biological daughter, Bairavi gets anger and both will quarrel every day. Also if any function days come, Bairavi calls Sivagami and family to the function and she will insult them. So that Sivagami feels sad and Thulasi will argue with Bairavi. When Vishwa and Thulasi are teenagers, Bairavi does not allow Vishwa to speak with Thulasi, and also she strictly warns Thulasi.
But Thulasi ignores Bairavi and she meets Vishwa on the streets. Also, Vishwa falls in love with Thulasi. Meanwhile, Rajarajan and Sivagami already planned when Vishwa and Thulasi in childhood that in future they will marry each other. But, Bairavi refuses Thulasi and she can't imagine her as a daughter-in-law so that she called Kanchana's granddaughter Kanaka Lakshmi, to her home and she fixed Lakshmi as Vishwa's fiancée. But Rajarajan not allows this marriage, so that Bairavi blackmails Rajarajan and got the promise from him that Vishwa and Thulasi should not marry. On the other hand, Bairavi calls to meet an astrologer to check the horoscope details of Vishwa and Thulasi, but already Bairavi requested the astrologer to lie, has if Vishwa marries Thulasi, Sivagami will die. Rajarajan heard this from an astrologer and he decided to keep a distance from Sivagami, Parthiban, and Thulasi. When Rajarajan scolds Thulasi, Sivagami feels heartbroken.
Then Thulasi found that the astrologer lied to Rajarajan and she warns Bairavi, but Bairavi becomes tense and plots to defeat her. Bairavi planned to theft Thulasi's mobile from one thief, likewise, he stole the mobile. Then the thief called Thulasi to come and collect the mobile in a car shed, meanwhile Bairavi planned and told Kanaka Lakshmi to be with the thief. Kanaka Lakshmi called Rajarajan and made a drama that she was kidnapped by someone. As Thulasi came to the car shed, Rajarajan also came after Thulasi to that place. The thief saw Thulasi and he kept the mobile and escaped. Thulasi found her mobile, that time Kanaka Lakshmi shouted for help. When Rajarajan heard and went to see. When he enters, he is shocked that Thulasi is there and he rescues Kanaka, then Kanaka Lakshmi lies that Thulasi only kidnapped her. Rajarajan misunderstood Thulasi and he visits Sivagami's house with Thulasi and he scolded her. When Rajarajan slaps Thulasi, Sivagami is appalled and she reveled the truth of Thulasi that she is the biological daughter of him and also explains the flashback of swapping babies. Rajarajan feels discomfort and he cares about Thulasi.
