One Two Three is a comedy of three men from various parts of India who share a common name ``LAXMI NARAYAN`` due to which various confusions start and the basic plot of the film is established.
The three main characters are Laxmi Narayan 1, 2 and 3. LAXMI NARAYAN 1 is played by TUSHAR KAPOOR, a young and aspiring emotional shooter from underworld whose only aim is to fulfill his mother`s dreams of becoming the most popular don. LAXMI NARAYAN 2 played by SUNIEL SHETTY is an automobile salesman from Mumbai whose only aim in life is to keep his boss happy and in course of which he becomes a confused and annoying character. LAXMI NARAYAN 3 played by PARESH sells KACHHA AND BRA in a mobile car on the streets of Chandni Chowk in Delhi. The story proceeds with the three of them reaching a single destination called Pondy for their individual work. The story now is full of fun, comedy and laughter leading to a climax most unexpected.