 However, Radha is actually the illegitimate daughter of Viswanathan, which only both of them know.Viswanathan, along with his wife (Sathyapriya and sister in law and family are on a vacation for three days, while Radha alone stays in the home along with Viswanathan's and his sister in law's(Fathima Babu) children.Radha spots Selvam and Bhaskar and locks them in the kitchen.