Suggest some 10/10 movies in tollywood, non mainstream

Suggest some hidden gems in Tollywood, i don't mind movies from 1950s to recent one, only criteria is Hook material and screenplay. Please don't suggest mainstream movies which are well known. Chiranjeevi and Balakrishna did 100 + movies, apart from hit one's there might be few underrated Good one's hidden, suggest those and other movies.