Kaasi(Arjun) has been waiting his whole life to take revenge on the three people who killed his parents. When he learns from his friend that the three are in Mumbai, he takes the next train there. But he is unable to get the job done fully and so is forced to stay back in Mumbai. He soon becomes part of the rowdy gang led by Ravi Bhai(Rajkapoor), which makes him the enemy of Siva(Jagapathy Babu), a member of another rowdy gang led by Ravi's own brother('Fefsi' Vijayan).

Madrasi seems like another of those movies that was started without having a complete script in hand. The movie lurches around with ridiculous turns in the screenplay that give us the impression that it was developed on the fly. Logic, realism and continuity don't seem to have been in Arjun's gameplan. An early example is the cliched revenge track that eventually turns out to be just a ploy to get Arjun to Mumbai. It is then completely forgotten until it is suddenly and awkwardly brought back when Arjun probably realized that it needs some kind of closure. Characters are forced to behave illogically solely in order to help propel the screenplay forward.

If one were to look for something positive in such a haphazard screenplay, it would be the fact that it makes the proceedings a little unpredictable. When Arjun has a flashback of his parents being killed or moves into a colony or joins a gang, we expect the movie to take a certain route based on similar scenarios in other movies. But the movie does not. Eventually it settles down by making Arjun and Jagapathy Babu well-matched foes who respect each other. This is a slightly different plot point considering that the movie is about dadas and their henchmen. But it hasn't been exploited well.

All hell breaks loose in the third act. A huge number of characters have been introduced by then and with none of them being fleshed out well or played by known faces, the screenplay becomes a confusing mess. We spend most of the time trying to figure out who is related to whom and who is trying to kill whom! And for those who are bored of all the car chases and bike chases, we get a train chase here. Yes, it looks as ridiculous as it sound!

Arjun goes through the motions and looks barely interested, not that we blame him. Vedika looks quite pale and doesn't stay in memory since the role doesn't demand much of her. Jagapathy Babu, a Telugu hero, doesn't bring anything special to the table. Paired with him is Gajala. This is probably the first time that the second hero has a more interesting and substantial romantic track than even the hero. Vivek's comedy is cheap, crude and almost painfully unfunny. Song sequences like the ones in this film are probably the reason song sequences came to be called 'cigarette breaks'! And the remix of MGR's Adho Andha Paravai Pola... seems more like an insult rather than a homage.