Sun TV Live can also be streamed on YuppTV Website from Laptops/ Computers or Mobile Web Browsers.Twin sisters Vani and Rani ( Raadhika), after the loss of their parents are brought up by their paternal uncle, Manikkam ( Ravikumar). Vani aspires to become a lawyer, therefore Rani sacrifices her education so that Manikkam will make Vani a lawyer. Over the years, Vani passes out as a successful Lawyer and gets married to Bhoominathan ( Venu Arvind), a granite businessman, while Rani gets married to Bhoominathan's stepbrother, Swaminathan ( Babloo Prithiveeraj), a popular restaurant owner. Meanwhile, Manikkam's son, Manohar (Sivaji Manohar) falls in love with Bhoominathan's sister, Jyothi (Premi Venkat) and elopes with her, where Rani is forced to marry, which causes several problems, and results in Vaani and Rani earning the wrath of both their uncle and their mother-in-law, Angayarkanni ( Shanthi Williams), while Vani refuses to speak with Rani thereafter. Over the years, Vani and Bhoominathan turn out to be very successful, while Rani and Swaminathan are not too successful since all of Swaminathan's business turn out to be failures. However, they all live together in the same house.
Vani has two sons, Surya Narayanan (Arun Kumar Rajan), an unemployed and childlike lawyer and Gautham (Vignesh Kumar), the college guy,while Rani has three children, Saravanan (Maanas Chavali), Selvi (Niranjani Asok) and Thenmozhi (Neha). Problems continue to erupt in the house due to Bhoominathan's ego against his stepbrother, while the entrance of Angayarkanni, who is jealous of Vani and Rani's close relationship despite Vani's refusal to ever directly address Rani, further worsens the problems, by conspiring against them and trying to separate them. Meanwhile, Selvi falls in love and under dire circumstances,marries Rajesh (Guhan Shanmugam) with only Vani as a chance witness, causing a rift in the family, and their eventual separation, resulting in Vani and Rani to get separated. However, Bhoominathan later realises his faults, turns over a new leaf and sends his mother away and tries to get the family together. They get together but live in separate houses. However, problems continue to haunt them in the form of a vengeful Angayarkanni and Jyothi and Kadhir, a local don who has his vengeance against Saravanan. Gautham threatens Kadhir to leave his family alone. After many incidentes and obstacles Gautham marries Pooja to rescue Saravanan from Kadhir. Kadhir turns into a good man after Pooja's marriage. While Jyothi's daughter Poongodi (Mahalakshmi) is involved in a love triangle between Karthi (Rajkumar), and Saravanan.