@Gitesh_kumar_Jha I am afraid that at this score, admission in top NITs is a bit difficult (you can go through last year's cut offs here - CCMT 2014 cut offs). However, this is only a preliminary analysis, and it is yet to be determined how different this year's results have been. If the overall scores have gone down, then cut offs will go lower, and vice versa.
Regarding Central Universities, only Central Universities of Tamil Nadu, and Kerala have announced course wise details. More details of Central Universities admissions will be given shortly. Are you looking at any specific CU?
@AKSHAY Your score is good, but going by last year's cut offs till round 2 and 3, chances are a little less in the good NITs. But like I have mentioned to Gitesh, this is a preliminary analysis, and a lot depends on the overall scores / performance of other students. Wait a while to get the final analysis.