In 2015, for Haryana Home State Quota (Females), the cutoff was 18393. I was telling according to this.
See, the thing with NITs is you will get a good crowd, good peer and a good overall environment. You get to meet and learn from students all over the world which is rarely possible in other colleges. So, if you really really want CS or some other particular branch, go for other colleges. Else, NITs will be a good option.