Alia, Sidharth, Arjun, Sonakshi party with Ranbir; Shahid with Jackky Bhagnani

Ranbir Kapoor is hosting a lot of parties these days. Few days after the 'PK' success bash, Ranbir, along with rumoured girlfriend Katrina Kaif, hosted yet another party; this time a Christmas bash which again saw a bevy Bollywood young guns gracing the evening.

Actress Alia Bhatt arrives at the party in style and we must say, she looks cute, though seems a little fazed by the shutterbugs. (Source: Varinder Chawla)

Accompanying Alia was her 'Student Of The Year' co-star Sidharth Malhotra. Sidharth and Alia have been recently rumoured to be dating each other. (Source: Varinder Chawla)

Also seen at the bash was Alia's '2 States' co-star Arjun Kapoor. (Source: Varinder Chawla)

Arjun's 'Tevar' co-star Sonakshi Sinha didn't seem to like the presence of photogs. (Source: Varinder Chawla)

Oh! She really didn't like it. Khamosh! (Source: Varinder Chawla)

Director Anurag Kashyap was also spotted at the house party. (Source: Varinder Chawla)

Meanwhile, Shahid Kapoor looked uber classy in casuals at actor Jackky Bhagnani's birthday bash. (Source: Varinder Chawla)

Actor Zayed Khan was also seen at the birthday party. (Source: Varinder Chawla)