Tamil actor Robo Shankar, known for his comedy roles, passed away at the age of 46 on Thursday. According to reports, he was admitted to a hospital in Chennai after collapsing on the set of a film earlier this week. Shankar, who featured in movies like 'Maari' and 'Viswasam', is survived by his wife Priyanka Sankar and daughter Indraja Shankar.