Kareena Kapoor Khan wished Arjun Kapoor a happy birthday, sharing a nostalgic photo from their ‘Ki & Ka’ days. Arjun, celebrated by Karan Johar as well, continues to make his mark in Bollywood after his debut in ‘Ishaqzaade’. He is set to appear in ‘No Entry 2,’ while Kareena will star in the crime drama ‘Daayra’ alongside Prithviraj Sukumaran.