There seem to be an interesting connection between the industry hits of Bollywood and Tollywood. 3 Idiots and Magadheera became industry hits for their respective industries in the same year, 2009. Both of them bet their previous industry hits by a huge margin and set a new record. And both the movies stayed in the position for more than 4 years and are beaten in the same year, 2013 (3 Idiots by Chennai Express, Magadheera by Attarintiki Daredi).
Interestingly, Shah Rukh Khan and Pawan Kalyan, the current industry hit holders are deemed as the most popular crowd pullers in both the industries and both of them suffered a significant lean patch before their industry hits. Lets see for how many days/months/years this new industry hits last!