It is the 1st successful movie based on Spy James bond type, The highlight of the movie is Prem Nazir's charming looks his way of acting as well as his dancing ability, Well directed well scripted as well as melodious evergreen songs, From this movie Nazir proved though that he is very much talented, 100% credit goes to Nazir's presence in this movie, Sheela too looks gorgeous & Adoor Bhasi comedy is fine after all you can say that it is the 1st black&white spy successful Golden Jubilee hit film of Mollywood till date no movie has been made or even reach to the expectation of Karutha Kai. With this movie Nazir set the trend fashion of tight fitting trouser & white shoes & T shirt.