The General rank is coming out to be 124530 and corresponding OBC rank is 30000 - 35000. There is less chance in IIITs as the competition is cut-throat now-a-days. You may get lower branches in some NIT with this rank. Check out JEE MAIN COLLEGE PREDICTOR and predict your college:

DS certificate is provided to those whose parents were in army and partially or totally disabled. One can use this certificate only to get admission in IITs.

Hope this information helps you. Good luck.