Diamonds worth ten crores are stolen from dangerous Don, Papa. The diamonds accidentally fall in the hands of young love birds - Chandu (Upen Patel) and Chandni (Tanisha), who quickly hide them in a car. Papa and his idiotic henchmen Albert (Vrijesh Hirjee) and Pinto (Manoj Pahva) are desperately hunting for the diamonds while hot headed police office Mayavati Chautala (Neetu Chandra is on the prowl looking for offenders of any kind.

Enter the first Laxmi Narayan (Tusshar Kapoor). He's from a khandani mafia family and his mother prays that with a few murders under his belt, he will be settled for life. After bitching up badly early attempts, he's got a final chance to redeem himself as a Bhai. He comes to hotel Blue Diamond, Pondicherry because he's taken supari to bump off Papa (Mukesh Tiwari).

Laxminarayan 1 - Tusshar Kapoor

He desperately needs to prove his killer instincts. But much to his mother's despair, this wannabe Bhai always goofs up. It's his last chance to kill, but he ends up becoming the victim - of love!

Laxminarayan 2 - Suniel Shetty

He's a loveable geek who takes pride in being accurate and detailed. He'll do anything to please the boss, including bearding a Don in his den. But when beaten up, burnt and tortured, even this ever affable soul wants to call it quits!

Laxminarayan 3 - Paresh Rawal

All the Bhabhis and Behenjis of Delhi will vouch for his uncanny eye - Just one look and be can gauge your innermost measurements. But then he comes across Laila who refuses to show him what he wants and blackmails him instead!

Jiya - Esha Deol

Jiya is a talented lingerie designer who is desperate to strike a deal that will settle her debts with the lecherous Mende. Waiting for underwear expert Laxmi Narayan she fails for Bhai Laxmi Narayan - the man who's come to kill her.

Laila - Sameera Reddy

Laila will do anything to save her glitzy auto showroom from being shut down by loan collectors. She will agree to strip or even try and sell off an old car till she discovers that the same car holds diamonds worth crores!

Inspector Mayawati - Neetu Chandra

She's bright and alert and takes a fancy to Laxmi Narayan 2. She's on the lookout for criminals and diamond thieves, but finds herself chasing after not one, not two but three Laxmi Narayans!

Chandu & Chandni - Upen Patel & Tanisha

They work in the showroom and love in their spare time. They hide the diamonds in an ancient car they think nobody will ever buy, but to their dismay, their boss Laila is hell bent on selling this same car to save her garage.

Raghav Sachar, the flamboyant musical sensation, who made notable presence with offbeat KABUL EXPRESS, gets his first big commercial opening in Bollywood with comical "bhelpuri" musical stuff in ONE TWO THREE. Barring the exception of semi-hit "Manzar" (SUNDAY), he has been moreover recognized as budding Indi-pop sensation with albums like "Play it loud" and "24 Carat" to his credits. The album showcases his multifaceted skills as a mushrooming prodigy but the word "remarkable" seems to be eluding him.

Raghav Sachar inundates his trendiest "fusion" of mixing vintage Bollywood's oomph with upbeat (similar to "Anjane Chehre" (Album – "Play it loud") orchestrations with hip-hop splurge into his "filmi" career first multifarious presentation in title track "One Two Three (hip-hop)". Sachar collaborates affably with gruffly voiced...