Its Mora Saiyaan from his own album. there's soo many version of the song sung by others like Shujat Ali Khan, Sniti mishra and rajdeep you should check it out :)
priyanka is the best actress n is still on the top unlike sonakshi who is still struggling to find her roles which r quite similar yet nice but cant be compared to priyanka the princess of bollywood n so amzazingly stunning n pretty as usual
the step has not originated from chennai it is from tollywood(vikramarkudu).the trick of Rajamouli the director(the creator of wonders).he has not known a flop till now in his career.the credit goes to him not even prabhudeva.OFcourse i like him too.