The home state quota of JEE Main is that state from where you have completed your class XIIth. Since you are studying in Odisha and must have completed your class 12th from a school which is located in Odisha, thus you CAN avail the home state quota benefit for Odisha in the JoSAA counselling for NIT Rourkela.

Moreover, the OBC category does not depend on your location, thus you can also avail the OBC quota benefit.

Wishing you all the best.