Proprietors: Kammath & Kammath

Kammath and Kammath is a film about two brothers, Raja Raja Kammath, the elder brother and Deva Raja Kammath, the younger brother who has a business endeavor that changed their lives forever. The Kammath brothers initially started making and selling dosa (savory South Indian crêpes) at a small stand to support their poor family. Eventually, their dosa received critical acclaim, and their stand grew into a restaurant, which grew into dozens of restaurants across South India. Sulaiman Sahib who is their rival, blocks the entry of Kammath Sr. He runs a non-vegetarian restaurant that is opposite a now defunct Brahmin vegetarian restaurant. He has a target of acquiring this restaurant's land.

The Kammath brothers plan to inaugurate their new restaurant in the building and land of the defunct restaurant. On opening day, the municipal secretary Mahalakshmi and ward counselor Sebastian Kuzhivelil are brought by Sulaiman Sahib to stop it from opening. They fail do it as the restaurant's name is now Kammath & Kammath and it has obtained a new license and ownership.

Sulaiman Sahib and Sebastian, with the help of a thief Pathrose throws stones and breaks Mahalakshmi's house's windows and frames Raja for the crime, resulting in him being arrested and he subsequently meets Deva in the lockup after he had been arrested for allegedly selling liquor illegally in their new restaurant. The Kammath Brothers threaten Pathrose in the police station and the truth is revealed that he has thrown stones at Mahalakshmi's house. The restaurant closed circuit security cameras reveals that people sent by Sebastian brought the liquor bottles to the restaurant to implicate Deva.

Later, both Mahalakshmi and Sulaiman Sahib are convinced by Raja that they are not problem makers and both become friends with them. The Kammath brothers opens their new restaurant in Coimbatore with the superstar Dhanush as inaugurator. One night, Sunnichan, attacks Mahalakshmi, asking about his sister, while she was coming back to Palakkad from Coimbatore. Raja saves her from Sunnichan by sending chauffeur/bodyguard Gopi to deal with him. On this journey, Raja and Mahalakshmi go to a restaurant for dinner. Raja meets his old wife with her new husband.

While continuing the journey back to home, Raja reveals that his wife had a different nature than the Kammath family had expected. One day, when their father suffers from chest pain, their mother asks her to drive him to hospital. She refuses as she had just applied Mehndi and wanted it to dry. But when their mother called a taxi and reached the hospital, their father passes away. Raja realizes that she is incompatible and divorces her. Mahalakshmi pities him after hearing the story.

The next day Raja is invited by Mahalakshmi to talk about a problem. She introduces her sister Surekha to Raja and says Surekha is scared that somebody is following her. The next day Raja sends Gopi to beat a helmeted person who comes near her. When Raja removes the helmet, he realises that the person is Deva. He becomes sad as he has beaten up his own brother. In anger, he slaps Gopi for hitting Deva. Deva tells him that he loves Surekha. Raja thinks that Mahalakshmi misunderstood them, made him to hit Deva and separate them. They both fights and leave. When they all leave, another person with a helmet who was following her arrives.

Raja proceeds with Deva's idea to marrying Surekha. Mahalakshmi tells them that Surekha is actually her deceased brother Suresh's wife and a Christian. Surekha's history is revealed by Mahalakshmi.

Suresh had married her years ago despite opposition from her family. On the first night of marriage, Suresh is killed by her family's henchman Vikram. The story reveals that Sunnichan is her actual brother and Vikram was another person who was following her. Even after knowing this story Deva wishes to marry her. Later at her house, the brothers realise to their shock that Surekha is speech impaired. Deva still wants to marry her and Mahalakshmi finally accepts it.

On the night before the wedding, Deva is accosted by Vikram and Surekha's brothers. He escapes to a godown where Raja awaits. A fight ensues where Raja, Deva and Gopi fights off Vikram, Surekha's brothers and their henchmen. The next day they are handed over to the police at Surekha's house and Deva marries Surekha. To everyone's surprise Mahalakshmi is married by the groom found by Suresh, who Raja selects.

Mammootty was chosen to play a prominent character. The character of his brother in the film was originally chosen as Jayaram but schedule conflicts led Dileep to replace him.[1] Kunchacko Boban had been approached for the role of Income tax officer, but he opted out, again due to schedule conflicts.[2] Dhanush was chosen to play a star who comes to Kerala to inaugurate the restaurant.[3] Most of the scenes from the film were shot in Cochin.[4]

• Kammath & Kammath at IMDb