Engineering Entrance Exam

Firstly congratulations regarding the score getting the score itself isn't important even counselling process also matters a lot. Firstly keep top colleges first there will be no problem regarding it since we can keep as many as we want in the list and then proceed in the decreasing order of colleges at last keep the unwanted colleges this ensure you to get a better version of colleges.

Please write about the college name for better response. However for NITs, JEE Main percentile above 97 can be good enough for admission.

JEE Mains exam is an Entrance exam through which you get top NIT'S colleges of India For Engineering stream (B.Tech). I am sending you a link. Please check it out for all information regarding JEE Mains. link-https://www.shiksha.com/b-tech/jee-main-exam.

I am sending you an authentic link from where you get all information about the cutoff for IIT CHENNAI. The cutoff are on the basis of different types of parameters. You check there. link-https://www.shiksha.com/college/iit-madras-indian-institute-of-technology-adyar-chennai-3031/cutoff.

Of course yes, If you secure a good percentile like 95 to 99 then you get into NIT Easily.

I am sending you an authentic link from where you get all information about WBJEE exam. But It seems Exam already held of WBJEE. Please check it out the link. link-https://wbjeeb.nic.in/wbjeecms/public/home.aspx.

SEE you may get colleges if you belong to Sc/st. But there is no confirmation from my side. But I suggest you go till last round and spot round in counselling, If any chance of getting a NIT's you may get. There is very less chance of General and OBC candidates in with this percentile for NIT's.

For IIT BOMBAY you have to secure the top rank in the JEE ADVANCE exam.
From JEE MAINS you get the NIT's college not IIT'S.
I am sending you an authentic link from where you get all information of cutoffs for IIT BOMBAY.please check it out.
link-https://www.shiksha.com/university/iit-bombay-indian-institute-of-technology-mumbai-54212/cutoff