vikraman was asked to prove himself as a smart thief by the chief. he also directed his men to observe vikraman. vikraman started to trick people by using various disguises. he disguised himself as old brahmin, washerman, cloth seller etc. he stole various items like diamond ring, expensive silk clothes, gold necklace, bicycle, horse etc. he also adopted the name "shanku" during this time. meanwhile, the dacoits visited vikraman's elder brother (kottarakara) and punished him for not taking care of his sister and family and make him promise to take care of them in the future. he understood his mistake and returned to his sister and family and look after them. shanku went to the house of a senior advocate (thikkurissy) and tricked his wife (sukumari) and his sister kunjikkavu (ambika) and stole their gold chain, silk clothes and even their house key. shanku on seeing kunjikkavu instantly fell in love with her. even though fooled, kunjikkavu developed and admiration towards shanku and gradually fell in love. shanku successfully completed his task and the dacoit chief let shanku return his son back to his home. after that, shanku returned all the items he stole to their respective owners. then, shanku disguised himself as a carnatic music teacher and took up the role of kunjikkavu's music teacher. even kunjikkavu didn't realise that the teacher is shanku. meanwhile, he tried to understand kunjikkavu's mind and told her his life story. hearing all that, kunjikkavu told shanku that she too loves him. then an old and rich brahmin came to marry kunjikkavu. her brother and sister in law agreed for the proposal even though kunjikkavu sternly opposed it. in the meantime, the expelled dacoit shot the chief and tried to take over as the chief of the gang. but shanku brought the injured chief to the scene and he killed the rebel dacoit. before he dies, the chief announce shanku as the new chief. but shanku wants the dacoits to lead a normal life and dissolved the gang. then shanku with the help of fellow dacoits threatened the groom and made him flee to kasi. then shanku as music teacher stepped in and offered to marry kunjikkavu to avoid the embarrassment of having the marriage cancelled. but, kunjikkavu opposed this proposal also and announced openly that she will only marry shanku. then shanku removed the disguise of the music teacher and revealed who he is. in the end, with the consent and blessing of all their relatives, shanku and kunjikkavu got married.