"Sunny paaji is my senior. I call him sir. I can't train anyone. Artists train themselves when the need arises. I did not train him. He (Sunny) knew the language and caught the lingo," the 40-year-old said.
Sunny, last seen in 'Yamla Pagla Deewana', plays an orthodox Hindu priest and a Sanskrit teacher in the film.
"Chandra Prakash Dwivedi (director) had told him everything in detail. Sunny-ji will surprise you in the film," he added, about the movie, which features TV star Sakshi Tanwar as Sunny's wife.
Meanwhile, Ravi, who is a known name in B-town too, has a host of films lined up, including a Yash Raj Films (YRF) project.
"There was 'Dangerous Ishq' and now there is 'Zila Ghaziabad.' Then there is 'Mohalli Assi', 'Jeena Hai Toh Thok Daal.' There is also a Yash Raj film that has just started. It is called 'Mere Daddy Ki Maruti'," said Ravi. He was last seen in 'Agent Vinod'.
"Bollywood has continuously given me a lot of love and respect. After 20 years of determination, Bollywood has embraced me, I am very happy," he added.
Pics: Prabhas, Tamannaah Bhatia at 'Baahubali 2' first look launch at MAMI
'Ae Dil Hai Mushkil' photos: Aishwarya, Anushka, Karan get candid at MAMI
Photos: Huma Qureshi, Neha Dhupia and other celebs at MAMI
Photos: Amy Jackson, Daisy Shah at Mumbai airport
Photos: Sridevi, Irrfan and other celebs at 'Mughal-e-Azam' screening