Hello amanpankaj . Nirma institute have its own merit ranking as you already known to it and your rank is good enough to fetch you good branch in it . In this condition your jee rank is of no use as your merit rank considering to jee rank is far better so for sure you will not get computer science branch as it is the most demanding branch and cutoff goes maximum low upto 400 rank but apart from that rest all branches are open for you you can even go for ece branch .

But if you want to search for college through jee mains score so use this link below

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer