Ranbir celebrates birthday with rumoured frenemies Anurag Basu and Imran Khan

Sidharth Malhotra was seen arriving solo.

Arjun Kapoor was also spotted at the party.

Ranbirs favorite co-star and best friend Aditya Roy Kapoor was seen arriving with hair pinned up in a bun.

Imran Khan and Avantika Maliks arrival left everyone surprised. Imran was once touted to be Ranbirs rival.

Director Rajkumar Hirani and writer Abhijat Joshi, who are collaborating with Ranbir on the Sanjay Dutt biopic were also spotted.

While its no surprise to see Imtiaz Ali, the presence of Anurag Basu is enough to shut everyone up who thought that the director had a fall-out with Ranbir following the failure of their last film, Jagga Jasoos.

Ranbirs Dragon co-star Alia Bhatt was seen sporting a casual look.

Aamir Khan arrived with wife Kiran Rao. The superstar will be next seen in a small role in Secret Superstar.

Ranbir Kapoor brought in his 35th birthday with a midnight bash that saw his closest friends and frenemies from the industry turn up. Click ahead to see who did we spot.