Prabhas will romance actress Pooja Hegde in the film.
Pooja, too, shared the poster and tweeted: "He has arrived to win your hearts & make you fall in love all over again! Here's wishing you all a Happy New Year! #2021WithRadheShyam. Starring #Prabhas & myself."
Prabhas' fans left new year wishes, too, and gave a thumbs up to the poster, with one calling him "the king #RadheShyam".
Radheshyam is a period romantic-drama. The multi-lingual film is helmed by Radha Krishna Kumar.