Ranbir Kapoor
Bollywood actor Ranbir Kapoor Reuters

Bollywood actor Ranbir Kapoor arranged a surprise birthday party for Nargis Fakhri, while the two were onboard an aircraft headed to Nagpur.

Kapoor, 29, and Fakhri, 32, are co-stars in the soon-to-be-released "Rockstar" and the duo have been busy promoting the film. 

Kapoor and Fakhri are creating a lot of buzz at the moment for their supposed on-screen chemistry, as well as recent media reports about a romantic scene in the Imtiaz Ali-directed film.

Kapoor reportedly surprised everybody on board, when he brought out a Ferrero Rocher chocolate cake for Fakhri. Singer Mohit Chauhan and producer Hiren Gandhi were also onboard.

According to sources, the cake had been quietly pre-ordered (from one of Mumbai's finest bakeries) and smuggled onboard without the actress' knowledge. Once in the air, one of the staff members convinced Fahkri to step outside the cabin for a few minutes. When she returned, reports say, the entire team presented her with the cake.

Reports also say that an overwhelmed Fakhri cut the cake and the team partied onboard, listening to songs from their film.

Fakhri, who turned 32 on Thursday was born in Queens, New York. She has previously appeared in the "Kingfisher Calendar 2009". "Rockstar" will mark her Bollywood debut.

The film is slated to release on November 11.