NIT

Yes, you will definitely get admission in NIT, as you scored very well. Just hope for the best.

There are chances of getting IIIT than NIT with your percentage. So, work well and achieve the best.

Which percentage are you talking about. If it's your boards percentage then it is enough to get into NIT after clearing JEE MAINS with good score.
If the marks mentioned above is JEE normalised score then it won't be possible to get into NIT . The normalised score for getting into any NIT should be more than 90. Moreover if CS IT is the branch you are concerned about , the score may be more than 95 even . I am talking about Normalised score and not marks . I hope it helped. Good luck.

All NIT's in the country have a great syllabus and coaching. For B.Arch course NIT Calicut and NIT trichy have been doing good since they have had better outputs in terms of rankings.

Depending on your choice of branch the NITs differ. If you have a NIT in your home state, it's better to apply for it, as more importance for Home state student would be given than other state students.

Hi Chethan,
You are able to get seats in many of the NITs and IIITs. Kindly check this website, fill in your details and see which all colleges you can get. https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

Yes,
There may be chances of getting a seat in CSE or Electronic and Electrical branch in any NITs, according to your JEE Rank.

CSE is not possible, but you can get admission in other least demanding branches.

With this rank, it is not possible for you to get CSE branch in any of the NITs.

Yes, with 9900 rank, you can get admission in any NIT, but not all branches will be available to you.