A video has surfaced online showing actress Alia Bhatt dancing to song 'Radha' from 2012 film 'Student of the Year' with filmmaker Karan Johar at her wedding after-party. Notably, Alia had made her acting debut in Bollywood with 'Student of the Year', which was co-produced by Johar's Dharma Productions. Alia got married to Ranbir Kapoor on April 14.