Mammootty in 'Pramaani' plays Viswanatha Panicker, the corrupt president of a grama panchayat. Panicker is a self-made man who has become immensely wealthy through corruption. He is called 'Pramani' because he has in his custody several documents; the Pramaanams as they call it.

Varma, a senior government official, who is about to expose an anti-corruption racket, is found dead under mysterious circumstances. Officer Chandrashekhar investigates the case to find the culprit.

Bhai Ji is a high-tech robber who changes his looks frequently. Disguised as jewelry experts, he and his team members hatch a plan to steal precious jewelry from a palace in Kerala.