Actor R. Madhavan has undergone a shoulder surgery.. Madhavan on Monday took to Twitter to share that he is back on track. . "Shoulder surgery done... Fighter back on track. Cannot feel my right arm haha," he tweeted. . The reason for his shoulder surgery has not been shared. . On the work front, Madhavan is seen on the web television series "Breathe", a thriller. . It explores the life of an ordinary man facing extraordinary circumstances.. The actor will also be seen in "Chanda Mama Door Ke" along with actor Sushant Singh Rajput.