Pawan Kalyan sustained a minor injury during the time of Gabbar Singh. Since then, his back was having a problem and also got treated for the same.
But now, the pain has come back again and Pawan will be flying abroad to get it treated once for all now. That is the reason he has taken a back seat from the political issues and will get back after he is fine.
A set of doctors have been witnessing his progress after his injury and they themselves have asked him to get operated for better relief.
https://youtu.be/xapPQIe-h8g