Sara Ali Khan celebrated her birthday among her closest friends on Monday. She cut a delicious and very healthy birthday cake and flashed the biggest smile for the camera. The up and coming actor and daughter of Saif Ali Khan, looked happy and beautiful as ever in pictures shared from the small get-together on her 23rd birthday, with friends. Chef Kelvin Cheung made the amazing cake for Sara and even shared a picture and a video of the birthday girl cutting it. We wonder what he put in the cake after all. Sara was spotted in a car with her brother Ibrahim on her birthday night in Mumbai. She wore a beige kurta and big, ethnic hoop earrings to go with it. Also seen at the party were mum Amrita Singh and actor Bhumi Pednekar.