Sara Ali Khan: Working with Kartik Aaryan in Aaj Kal has been a blast

Sara Ali Khan and Kartik Aaryan cannot stop praising each other. They have been spotted a lot of times in the city. Kartik even flew out to Bangkok on the sets of Coolie No 1 to celebrate Sara's birthday. Sara spoke about working with Kartik and Imtiaz Ali on Aaj Kal.