You can go to Udaygiri or Khandagiri. It will be covered in 1 day. But the view is nice. You can also visit Deras Dam, not a trekking place, but very pretty place
You can go Udaygiri, Khanda giri. But if you want some different places, then go for Daringbadi(Kashmir of Odisha) including Mandasaru ( Odisha's silent valley ) and Belaghar.