Hello Aspirant, If your OBC rank is 18 thousand then your rank All India Rank should be around 60 thousand. As being a OBC Candidate you can get Mediocre branches in low NIT's like NIT Srinagar, NIT Nagaland, NIT Utrakhand etc and low branches in Average NIT's like NIT Rourkela, NIT Durgapur, NIT Jamshedpur etc,Now taking about GFTI's you can get low GFTI's like Assam University Sichar, School of Engineering and Technology Mizoram etc and IIIT's like IIIT Agartala, IIIT Manipur etc.

Last year closing Cutoff rank for some NIT's which you can get (Rank mentioned are All India rank for OBC Quota Candidate only)

NIT Srinagar


Chemical Engineering - 75783


Civil Engineering - 70020


Computer Science Engineering - 35819


Electrical Engineering - 57573


Electronics and Communication Engineering - 47752


Information Technology - 46214


Mechanical Engineering - 61158


Metallurgical and Material Engineering - 84365




NIT Nagaland


Civil Engineering - 70791


Computer Science Engineering - 47564


Electronics and Communication Engineering - 53416


Electrical and Electronics Engineering - 63566


Electronics and Instrumentation Engineering - 71647


Mechanical Engineering - 62142