Hyderabad, April 21 -- Over the last year, classic movies have become big business for Tollywood. Re-releases of old blockbuster hits have been creating a buzz - and an opportunity to see favorite films again - in cinemas across Telugu states. One such wave has been made by Happy Days, which brings back memories of college life and all that goes with it.

Happy Days, a beloved show about the lives of engineering students, is back in theaters and drawing huge crowds who love it - or now love it all over again. In Hyderabad, screenings have been selling out, with people dancing and singing along to the classic songs from their college days. It's like going to a concert with friends rather than just watching a film.

Nikhil Siddhartha, one o...