6 Alvarez House in Bandra, Mumbai, is the residence of myopic, widowed, devout Hindu, Satyabol Shashtri (Anupam Kher), who lives there with his daughter, Shivani (Riya Sen). Shivani is in love with her Christian neighbor, Arjun Fernandes (Shreyas Talpade), who is a mechanic and lives with his wanna-be singer sister, Julie (Koena Mitra), and a younger ailing sister, Titli. Satyabol disapproves of Arjun and wants his daughter to get married to Sarju Maharaj Banaraswale's son. Other than Satyabol chasing Badshah, the pet dog of Arjun, and ending up in the woman's bathroom, the area is fairly peaceful.
Then arjun and his friends try to think of a plan to stop sarju from marrying his son to shivani but cannot so arjun calls his friend Kishan To help them. Kishan comes in the disguise of sarju maharaj banaraswale by tricking the real sarju into getting of the and as soon as he gets of the train some goons who think he is a relative of kishan catch him and take him to find out where kishan is. Meanwhile kishan becomes sarju and convinces satyabol shashtri that his (sarju's) son is not good for his( shashtri ) daughter by dancing in the bar and kissing Julie who was in the act then shashtri says to the fake sarju that he does not want to marry his daughter to sarju's son and that he can go now so having finished his mission kishan prepares to leave when arjun tells him to stay back as he loves julie but kishan refuses saying that he is not destined for julie then after arjun goes and Rana turns up with the real sarju but when kishan says that all the is with sarju they leave kishan and run after sarju while kishan escaped, disguised himself as a woman named sunaina and said 'she' was arjun's aunty and soon shashtri falls into love with her.Then in the neighbourhood also comes Matha prasad who runs a dairy farm And moonlights as the hit man Of Bangkok based underworld Don, Carlos. And the once honest cop mane ( pronounced as maa-ne ) Team up with carlo's girlfriend sania Is on the lookout for hidden diamonds And facing bankruptcy - Carlos himself - As they face off in One of the most hilarious stand-offs to seek wealth and to fulfill their individual dreams.