Kannan(Suresh gopi) and Das(Lal) are childhood friends and both adopt a sister Devu(Kavya Madhavan). After struggling a lot both of them become successful businessmen but are usually living with their fist power. Shathrughan(Dileep) joins their company as manager. Kannan and das publicly embarrass a singer Sangeetha(Geethu mohandas) for not singing at their programme. When she is kicked out from her house, kannan and das give her shelter on the request of devu. Shathru comes to know that devu who was his love interest is his bosses sister and she is worried about her brothers ruffian lifestyle. Shathru understands that only getting them hitched will make them straight. Shathru comes to know that Meenakshi(Samyuktha Varma) is in love with kannan. Kannan too loves her but is avoiding her, one because she is the daughter of their enemy Devarajan(Spadikam George) and he fears that das would not like their relationship. Shathru strikes cupid in their love and also tries it for das and sangeetha. But sangeetha says to das that she loves kannan. Kannan introduces meenakshi to das and das begins to misunderstand meenakshi is in love with him. How all this confusion solves and the real partners unite is the rest of the film.
Though Suresh gopi and lal are the protagonists its dileep who carries the whole film on its shoulders. He along with salim kumar bring the whole house down with their comedy. Many of its comedy scenes are having a cult following. Another highlight is the foot tapping songs of suresh peters. Film is also packed with action romance and emotions. Only drawback is its confusing story. But that is not an issue at all. Thenkashipattanam is a well packaged commercial entertainer which I love to rewatch.
