Nyayavidhi is a 1986 Indian Malayalam-language film, directed by Joshiy and produced by Joy Thomas. It stars Mammootty, Shobhana, Sukumaran, and Lalu Alex. The film has a musical score by M. K. Arjunan.^[1][2][3]

Paramu and Johnny frame Unnithan for the murder of a Govt. official committed by the latter. They manage to do this with a corrupt policeman's help. They steal businessman Unnithan's black money, trap Malayil Thomas, another businessman, and become successful. Paramu squanders the money and chooses to work as a henchman for an Anglo-Indian businessman named McPherson, and Johnny builds himself up as a businessman with the money. To avoid being captured in a raid, McPherson asks Paramu to safe-keep 100 lakhs (1 crore) of his unaccounted money for two months. Paramu entrusts the money to Johnny, but they fall out because of Unnithan's daughter, Geetha, who now is a low life due to circumstances. Paramu marries Geetha out of guilt and Johnny becomes his enemy. Johnny grows paranoid and starts to eliminate everyone whom he distrusts. Johnny, with the help of Mathews, informs McPherson that Paramu has ran off with the money. They two join hands to eliminate Paramu and retrieve the money. In the end, Johnny shoots Paramu and vice versa. They both die near the fields where they committed their first murder together.

The music was composed by M. K. Arjunan with lyrics by Shibu Chakravarthy.

The film was huge disappoint at the box office and 11th contionus flop of mammootty.^[4]