The story revolves around three roommates,
journalist Tashi ( Imran Khan ), photographer Nitin
Berry ( Kunaal Roy Kapur ) and cartoonist Arup ( Vir
Das ), leading an unkempt and debt-ridden life in a
shoddy apartment. Tashi's ditzy fiancée, Sonia
( Shenaz Treasurywala), is an air hostess who agrees
to deliver a package for Vladimir Dragunsky ( Kim
Bodnia ) to Somayajulu ( Vijay Raaz ), without realizing
its contents or that Somayajulu is a gangster. Sonia
asks Tashi to deliver the package. Tashi, in turn,
asks Nitin to do so. But Nitin is unable to do so as
he is suffering ' Delhi Belly '. Nitin hands Sonia's
package to Arup for delivery to Somayajulu, along
with a package containing his stool sample for
delivery to Nitin's doctor. Arup mixes up the two
bags. Somayajulu, furious, tortures Vladimir to find
his package.
Meanwhile, Nitin photographs his landlord with a
prostitute. He sends an envelope with the
photographs to his landlord to blackmail him. Tashi
is with Sonia, when his colleague Menaka ( Poorna
Jagannathan ) calls him on the pretext of work. When
he reaches the place he realizes that it is just a party
and Menaka called him just to have fun. Menaka's
ex-husband Rajeev sees them together and gives
Tashi a black-eye in a fit of jealousy. Tashi retaliates
and knocks Rajeev out. As Tashi and Menaka leave
they are chased by a furious Rajeev and his friends
who shoot at them. The duo barely manages to
escape.
Vladimir informs Somayajulu that the mix-up must
have been caused by Sonia as she didn't know what
she was carrying in the package. Somayajulu calls
Sonia, informs her about the mix-up and asks her to
give him the address of the person who had delivered
the package. When Tashi arrives into his apartment,
he walks into Somayajulu who has Arup standing on
a stool with a noose around his neck. On hard
interrogation, Somayajulu discovers the mix-up and
realizes that the package must be with Nitin's
doctor.
Nitin gets the package from his doctor's office,
wherein Somayajulu finds his thirty diamonds hidden
inside. Upon recovering his booty, he orders his
henchmen to kill the three roommates. One of them
is about to shoot Tashi, when another kicks the stool
on which Arup was standing to hang him. Luckily for
the roommates, the ceiling of the apartment
collapses, since it can't take Arup's weight. The
cave-in knocks out Somayajulu and his men, leaving
one with broken arms. Tashi, Arup and Nitin escape
with the diamonds and spend the night at Menaka's
place. The next day they sell the diamonds to a local
jeweller.
As the roommates prepare to get out of town with
the money, they get a call from Somayajulu who has
kidnapped Sonia. He threatens to kill her if they don't
return the diamonds. The trio try to buy back the
diamonds from the jeweller, who demands double the
sale amount.
Without the money, Tashi comes up with a plan.
Nitin, Arup, Tashi and Menaka disguise themselves in
burqa and rob the jeweller, leaving him the bag of
money. They flee in Tashi's car with the police on
their tail and go to the hotel where Somayajulu is
holding Sonia. As they are about to make the
exchange with Somayajulu, the police arrive at the
hotel room. There is a shoot-out between the police
and Somayajulu's gang.
Nitin, Arup, Tashi and Sonia, who had hit the floor
during the gunfight, are left as the only survivors.
Menaka, who by now realises that she likes Tashi, is
upset to learn about his engagement and walks away
from him. Tashi breaks off his engagement to Sonia.
Later, it is revealed that Nitin did not return the cash
to the jewellery store owner, and had kept most of
the money for himself (whereupon he abandons
blackmailing the landlord). The film ends when
Menaka comes to the roommates' apartment to
return Tashi's car's hubcap lost while escaping from
Rajeev. Tashi jumps into her car through the open
window and kisses her passionately.
Producer-actor Aamir Khan is seen dancing in a song
and dance performance as the credits start rolling.
journalist Tashi ( Imran Khan ), photographer Nitin
Berry ( Kunaal Roy Kapur ) and cartoonist Arup ( Vir
Das ), leading an unkempt and debt-ridden life in a
shoddy apartment. Tashi's ditzy fiancée, Sonia
( Shenaz Treasurywala), is an air hostess who agrees
to deliver a package for Vladimir Dragunsky ( Kim
Bodnia ) to Somayajulu ( Vijay Raaz ), without realizing
its contents or that Somayajulu is a gangster. Sonia
asks Tashi to deliver the package. Tashi, in turn,
asks Nitin to do so. But Nitin is unable to do so as
he is suffering ' Delhi Belly '. Nitin hands Sonia's
package to Arup for delivery to Somayajulu, along
with a package containing his stool sample for
delivery to Nitin's doctor. Arup mixes up the two
bags. Somayajulu, furious, tortures Vladimir to find
his package.
Meanwhile, Nitin photographs his landlord with a
prostitute. He sends an envelope with the
photographs to his landlord to blackmail him. Tashi
is with Sonia, when his colleague Menaka ( Poorna
Jagannathan ) calls him on the pretext of work. When
he reaches the place he realizes that it is just a party
and Menaka called him just to have fun. Menaka's
ex-husband Rajeev sees them together and gives
Tashi a black-eye in a fit of jealousy. Tashi retaliates
and knocks Rajeev out. As Tashi and Menaka leave
they are chased by a furious Rajeev and his friends
who shoot at them. The duo barely manages to
escape.
Vladimir informs Somayajulu that the mix-up must
have been caused by Sonia as she didn't know what
she was carrying in the package. Somayajulu calls
Sonia, informs her about the mix-up and asks her to
give him the address of the person who had delivered
the package. When Tashi arrives into his apartment,
he walks into Somayajulu who has Arup standing on
a stool with a noose around his neck. On hard
interrogation, Somayajulu discovers the mix-up and
realizes that the package must be with Nitin's
doctor.
Nitin gets the package from his doctor's office,
wherein Somayajulu finds his thirty diamonds hidden
inside. Upon recovering his booty, he orders his
henchmen to kill the three roommates. One of them
is about to shoot Tashi, when another kicks the stool
on which Arup was standing to hang him. Luckily for
the roommates, the ceiling of the apartment
collapses, since it can't take Arup's weight. The
cave-in knocks out Somayajulu and his men, leaving
one with broken arms. Tashi, Arup and Nitin escape
with the diamonds and spend the night at Menaka's
place. The next day they sell the diamonds to a local
jeweller.
As the roommates prepare to get out of town with
the money, they get a call from Somayajulu who has
kidnapped Sonia. He threatens to kill her if they don't
return the diamonds. The trio try to buy back the
diamonds from the jeweller, who demands double the
sale amount.
Without the money, Tashi comes up with a plan.
Nitin, Arup, Tashi and Menaka disguise themselves in
burqa and rob the jeweller, leaving him the bag of
money. They flee in Tashi's car with the police on
their tail and go to the hotel where Somayajulu is
holding Sonia. As they are about to make the
exchange with Somayajulu, the police arrive at the
hotel room. There is a shoot-out between the police
and Somayajulu's gang.
Nitin, Arup, Tashi and Sonia, who had hit the floor
during the gunfight, are left as the only survivors.
Menaka, who by now realises that she likes Tashi, is
upset to learn about his engagement and walks away
from him. Tashi breaks off his engagement to Sonia.
Later, it is revealed that Nitin did not return the cash
to the jewellery store owner, and had kept most of
the money for himself (whereupon he abandons
blackmailing the landlord). The film ends when
Menaka comes to the roommates' apartment to
return Tashi's car's hubcap lost while escaping from
Rajeev. Tashi jumps into her car through the open
window and kisses her passionately.
Producer-actor Aamir Khan is seen dancing in a song
and dance performance as the credits start rolling.
