The chasm widened in the 1970s-80s. Bollywood produced the "angry young man" (Amitabh Bachchan)—a brooding, urban avenger. Meanwhile, South Indian cinema gave us the "god-like star" (M.G. Ramachandran, N.T. Rama Rao, Rajinikanth)—stars who entered the screen with smoke, fire, and fan worship bordering on religion. Bollywood saw this as melodramatic excess; the South saw Bollywood as emotionally timid.
If you're looking for a movie recommendation or details about a South Indian film featuring an actress named Devika, here are some steps you can take: The chasm widened in the 1970s-80s