What's Special in 'Ramayya Vastavayya'?

Every movie in combination of star hero and star director needs to have one or the other special ingredient to become a blockbuster hit at BO. Like Antyakshari episode in ‘Gabbar Singh’ or ‘NTR Sangeet Song’ in ‘Baadshah’ or the comedy tracks in ‘Dookudu,’ directors have to strive fo movienews