Hey aspirant,

According to your CRL rank mentioned I guess you have very low chance of getting seats into top NITS, IIITS, GFTIS but you may get some of the average rated NITS, IIITS, GFTIS but you may have to struggle or compromise with your desired branches.but since every year the cutoffs changes so I'm not sure about it.But,don't get disheartened as there are many more private colleges too which are very well known and also provide an awesome placement to students.So,to have an idea of which colleges you might into based on your rank use the link mentioned below-

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

Hope it helps.

Good luck.