IIIT

No, you cannot get any NIT, IIIT or GFIT. You should try for either government or private engineering colleges like JECRC, LPU, SKIT, Poornima College, Chandigarh University, Arya College, etc. There are many more private colleges according to your location. Thank you.

No, you cannot get any NIT or IIIT. You should either take a drop or choose a government or private engineering. College. You can probably get admission in NIRMA University, Ahmedabad, which is among top 30 colleges in India including all NITs and IITs. For getting admission in it, you need to fill up an online form. Then you will be shortlisted according to your JEE score and 12th score. There are maximum chances for you to get it. Best of luck.
Thank you.

No, there is no other way/test for admission in these institutions.

No, you are eligible to get seats in NITs. But, you can get any other government colleges. You can apply once the counselling lines are open.

No, you cannot get any NIT or IIT but you can get one of the best government colleges or private engineering colleges. You can predict the college according to your score or rank-
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Hope this will help you to find a good college. Best of luck for future. Thanks.

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Please go through this link to clear your query you will get idea here about the college you can get.
Good luck.

Check 2017's closing ranks in special round and then you may get an idea.

Yes, you have chances to get into NITs and GFTIs, but you will never get your choice of specialization. You have to opt for odd specializations like paper engineering and textile engineering.

HiIf you are from Delhi you have high chances but if you not belong to Delhi then there are no chances.