"There is no bigger star than him (Rajinikanth).... It is because he is so humble, simple. He is so sincere and hard working. It is incredible to observe his hard work and I have had a great time working with Rajini sir," she said at the launch of Amego, a health-related app here.
Asked if she spoke to Rajinikanth in Marathi as she did not know Tamil, Radhika said she introduced herself to the superstar in Marathi, but conversed in English during the shooting of the blockbuster.
Rajinikanth's mother tongue is Marathi and he was born into a Marathi family.
Asked what was the conversation in Marathi, Radhika said, "I just said that do you speak Marathi, and he said that yes, yes I do speak a bit of Marathi because I am from Belgaon (Belgavi in Karnataka)."
Radhika, however, said Rajnikanth conversed with her in English during the shooting of "Kabali", and always translated the instructions given by Director Pa Ranjith during "stressed-out" situations.