Sivakarthikeyan's upcoming movie Doctor had its first single release titled Chellamma last evening. A lyric video for the song was unveiled which shows composer Anirudh and director Nelson in session with the film's producer and lead actor. The track is also available on all music streaming platforms. 

Doctor is a comedy-action-entertainer and the film has has Vinay playing the villain and Tamil debutant Priyanka Mohan playing female lead.