“Challenge Ramudu” records impress me the most among those created by N.T.R. because he achieved them by working with T.L.V.Prasad , a second rung film-maker. Years later, N.T.R.s’ fan Y.V.S. Chowdhary used the super-hit song from the film ” Pattukoo Pattukoo Pattucheera” in his “Okka Magaadu“. Bhargav Arts S.Gopal Reddy, his other fan, showed the song clipping in his “Manishikoo Charithra“.
I am yet to come across any other producer declaring the second week revenues for a movie in 70s and 80s.