Bollywood’s rising stars Alia Bhatt and Arjun Kapoor wowed crowds in London ahead of the release of their new movie 2 States.

They were joined by award-winning author Chetan Bhagat.

The celebrity trio attended a specially convened press junket at London’s five-star The Courthouse Hotel, where they met media and conducted a series of in-depth interviews.

Alia, Arjun and Chetan then headed to the Cineworld multiplex in Feltham, south-west London, for a unique meet and greet with several thrilled fans.

It was an extra special treat for a few fans in particular, as these lucky competition winners got up close and personal with their idols, when they met Alia and Arjun in person.

2 States is a romantic comedy film about a young couple from different states in India (Punjab and Tamil Nadu), who meet at the Indian Institute of Management Ahmedabad (India) and fall in love.

However, their relationship is riddled with obstacles as they try to convince their traditional families to accept their relationship.

The film has already hit the headlines because of an on-screen kiss between the couple.

Kissing in Bollywood films tends still to be quite taboo. This despite movies being known for some of the sexiest dancing on screen.

Arjun is reported as saying: “It’s interesting that it comes down to the fact that you put a kiss in a trailer and that gets spoken of. There's a lot more in this trailer than that kiss. There are a lot of layers in the film.”

Alia added: “In the beginning of the film we’re in a live-in relationship, so obviously when you're in a live-in relationship with someone that you love, what do you do? How long can you keep your hands off each other?

The brings together some of Indian cinema’s most accomplished and talented actors from north and south, in the supporting cast.

That includes Amrita Singh (Aaina, Betaab), who plays the prejudiced, battleaxe Punjabi mother Kavita Malhotra and Ronit Roy (Midnight’s Children), who turns in an impressive performance as the alcoholic, down-trodden father Vikram Malhotra.

There are also worthy performances by Revathy (Molly Aunty Rocks) and ShivKumar Subramaniam as the devoted Tamil-Brahmin parents.