Nineteen-year-old Riddhi Sen was named the Best Actor for the Bengali film 'Nagarkirtan' at the 65th National Awards which were announced on Friday. Riddhi had also featured in the 2016 Oscar nominated film 'Lion' and the films 'Kahaani' and 'Parched'. 'Nagarkirtan', directed by Kaushik Ganguly, also won the Special Jury Award, Best Costume and Best Makeup Artist National Awards.