No, NTR will not be hosting the third season of Bigg Boss. Initially he has plans of hosting the third season, but he has dropped the plan.
The first season of Bigg Boss was hosted by NTR and it was a huge success. Second season was hosted by Nani. The makers wanted NTR back in the show owing to the fact that some issues kicked up. They even fixed a huge remuneration for him.
But now NTR says nay. Reason for this is that he wants to concentrate completely on S S Rajamouli's film RRR. He plays the role of Komaram Bheem. NTR is not able to adjust dates.
The makers of Bigg Boss are now looking at other options.