Kangana Ranaut and Rajkummar Rao have been spending late nights shooting for Prakash Kovelamudi's Mental Hai Kya in London. The two begin their day with lunch, followed by shopping and goofing around for keepsake snapshots. Some people have all the fun.

Rajkummar Rao attended a three-week-long workshop to get into the skin of his character. Interestingly, director Prakash Kovelamudi insisted on having separate readings for Rajkummar Rao and Kangana Ranaut so that the actors could bring their own interpretations to the characters, on the first day of shoot.