Sidharth Malhotra, Alia Bhatt, Fawad Khan and Shakun Batra are flying high due to the success of their film "Kapoor and Sons," which has been produced by Dharma Productions. Karan Johar apparently threw a small house party recently to celebrate their hard work.

Alia, Sidharth, Fawad, Ranbir Kapoor, Shakun and Ayan Mukerji were spotted at Karan's house. Rumoured couple Alia-Sidharth arrived at KJo's residence together, while Fawad accompanied Shakun. Later, the "Kapoor and Sons" team was seen at a theatre watching their film.

The reason why these celebs arrived at Karan's house is not confirmed yet, but it is always a treat to see all these stars under one roof. It was interesting to know Ranbir and Alia partied together as there were rumours that the "Shaandaar" actress was the reason behind Ranbir and Katrina Kaif's break-up.

Earlier, it was reported that Katrina couldn't bear her then boyfriend's fondness for Alia in the parties that used to be held in Katrina-Ranbir's apartment. Alia's presence in Ranbir's life had reportedly started bothering the "Fitoor" actress.

Katrina even expected Imtiaz Ali to drop Alia from his upcoming superhero flick, which stars Ranbir and the "Highway" actress. However, things apparently didn't work out the way Katrina wanted, leading to unending arguments between the two.

Seeing Ranbir-Alia together, it seems the reports were a mere rumour, as Alia is purportedly dating Sidharth. Though the duo has not admitted to their relationship in public, fans are smart enough to understand what's cooking between the two.

"Kapoor and Sons" is the second film after "Student of the Year" in which Alia and Sidharth have worked together. The film, which opened to positive reviews, is still winning hearts with its storyline and all the actors' performances.

Meanwhile, check out the slideshow of the photos of the celebs who arrived at Karan's house.