Jr NTR has spoken about the experience of doing 'Naatu Naatu' for a period spanning weeks in Ukraine. Speaking to a US-based media house, Tarak said that Prem Rakshit's steps in themselves were not hard.

But what was harder, said the 'RRR' actor, was the synchronization part. "I and Ram Charan had to achieve perfect synchronization. For that, we had to rehearse for three hours each day both before and during the shoot of the song," Tarak said. "My legs still hurt when I think about those practice sessions and hard work," he suggested.

The Nandamuri actor added that he had no idea that 'Naatu Naatu' would become globally popular.

The Oscar event is going to be held this March 12. All eyes are on the event. 'Naatu Naatu' is most likely set to win the Best Original Song award.