This movie was a block buster when it got released in 1964. Nazir and Sheela reached dizzy heights . This movie came in quick succession after "Kuttikkuppayam" another mega hit starring the same pair Nazir - Sheela. Curiously and interestingly , I , a movie buff, missed out on watching this movie for so long, though I have a heard a lot about it. Somehow that did not happen so far. Thus in my mind a kind of mysterious aura got built around this movie , and this movie was high on my list of to be watched movies. This is the first time I watched this movie and my expectations were not totally belied. This movie is a trend setter of sorts because in my opinion it has the right amount of masala, melodrama and whatever else that defines a Mollywood masala. This trend continued well into seventies and eighties , and ensured a fail-safe formula for hits. One driven by circumstance takes to crime and the other again driven by similar circumstances takes the side of law and a clash becomes inevitable. The movie is made very well, considering the fact that the resources available for making such movies in those days were very limited . The technical stuff of this movie is quite beyond it's times like photography , lighting effect etc.The movie's background score by the legendary v.Dakshinamurthy, absolutely blows your mind and adds to the thrill. Now coming to the acting part, Nazir is too good and plays the role of Mohanan very realistically, sometimes though he tends to overact. The role of Dr.Chandrashekharan Nair is played fairly OK by Kottarakka sreedharan nair as I find his face lacking in expression sometimes. But somehow Kottarakkara manages to lend a quiet dignity to his role. Sheela scores , throughout the movie as her role as Sumathi also is tailor-made for histrionics. The pair Nazir- Sheela really hit it off together. Direction by S.Ramanathan is commendable. One disconcerting aspect of the movie though are the songs. They pop up when least expected and least wanted. The songs are one too many and very distracting to the main plot. But others may have a different view altogether about this. The songs are by themselves are OK but bursting into the movie in the most unwelcome moments and junctures. Iam compelled to deduct a star on this count alone.Well in one word : This movie defined the phrase " time pass masala " in Mollywood's context.