Mohan Kumar, a budding singer falls in love with Nandini, a normal village girl. They get secretly married. However, Mohan is forced to choose between music and Nandini. He chooses the former and abandons Nandini. Mohan marries a wealthy woman named Padmini "Puppy" Menon, unaware that Nandini is pregnant.
Padmini gives birth to Thampuru, and Nandini gives birth to Anugraha "Anu". Thampuru is a spoilt brat. While Anugraha, just like her father, loves music. Nandini lives with her brother Nandu and sister in law Bhadra who dislike her. Eventually, Anu is seen to be a great fan of Mohan and goes to meet him. Nandini, gets hit by a car and is hospitalized. Anu collects money for her mother's treatment only to be devastated to know that Nandini has died.
Anu wanders off alone, dressed up as a boy, where she reaches Mohan's home where Every members, except Padmini, Thampuru and her parents becomes fond of Anu by her musical talent. Mohan's brother Chandran and his wife Nirmala decides to adopt Anu. Padmini gets to know about Anu's true identity and reveals it to all. Meanwhile, Bhadra realises her mistakes and enters Sreemangalam house as a housemaid named Kalyani, Anu recognises her. Kalyani (Bhadra) too starts supporting Anu.
The rest of the story hurdles about Anu's life in that house. Including, the friend-foe relationship between Anu and Thampuru. Mohan and Anu starts to get closer where Mohan realise that Anu is his daughter. Thampuru discovers that Anu is her half sister. Anu and Thampuru get even more closer.
However, the series ends, as Padmini realises her mistakes. Guilt-ridden, Padmini leaves the house after leaving a message, to Mohan and Thampuru and asks Anu for forgiveness. Mohan, Thampuru and Anu are much worried about her, as they wait in a hope that she will return.[2][3]
