JEE

The score is too low. Go for private colleges.

No, you need to appear in CET ( entrance) test.

For good college make the target of 98+ percentile in JEE Main and 200+ marks in JEE Advanced.

Your strategy totally depends upon your goal, and upon your situations. Speaking about a general, non-ews student, you need a percentile greater than 92, for which you'll only get a seat in the spot round, for biotech or mpae at NSUT/NSIT. Marks anywhere around 110 to 120 could be enough, considerin

As you have not mentioned your home state I would consider only the OS quota in every college. You can get most of the NITs with your rank some of the picks would be :
MNIT Jaipur
VNIT Nagpur
NIT Rourkela
SVNIT Surat
MANIT Bhopal
NIT Raipur
These picks are mentioned in an order in which I would give them p

There is no option for government colleges in any of the branches even in lower branches also you will also not get admission into any private colleges also in CSE you can only get admission through management quota.

First of all, congratulations to get good marks in your 12th. Taking admission in NIT or IIIT is dream of many students in India. To get admission in NIT or IIIT, you need to appear for JEE Mains exam conducted by NTA every year. Every year 7-8lakh students appear to give this exam
There are 31 NIT a

JoSAA choices has been locked. So you can not go for JoSAA counselling. But you can think of CSAB once it starts after JoSAA in which only AIR is considered for counselling. Since your SC rank is this high then your AIR would have been too high so it's like very tough to get CSE/IT. Hope it helps.

Hi, Admission in NIT or Branch will depend on your rank and preference, and the choice of other students.