Karan Johar had invited 128 people for his birthday, he revealed this in a chat with Alia Bhatt, which he did on his birthday. Bollywood stars made sure they mark their attendance at KJo's party. This year he turns 45 and it is special because Karan is now a father of two. Sanjay Dutt, Ranbir Kapoor, Aamir Khan, Anushka Sharma, Raveena Tandon and host of other stars can be seen making their way in and out of his Khar residence.