NIT

Type of board does not matter for results of IITs or NITs. +2 score is used as minimum eligibility criteria. There are changes expected on eligibility criteria for 2017 batch.

There is no NIT college which provides Aeronautical Engg and very few IITs are providing this course. Apart from this there are various private colleges which are providing this course. You can check on Google and NIT college as I have checked is not providing this course.

yes.
you can get MNNIT IIITA and many more.

Brother if you r thinking about CSE than it goes under 2k. But for EEE and ECE , ME you can expect about 3.6-3.7k.
Best of luck.
extra-I am also seeking that.

u should go on the shiksha web site and there is option for the comparison of the btech colleges there u also can find college of your expected region. best luck.

Following are the top NITS for both Electrical and Mechanical Engineering graduation: (a) National Institute of Technology (NIT Trichy) (b)National Institute of Technology, Warangal (NIT, Warangal) (c) National Institute of Technology (NITC) Calicut (d) Motilal Nehru National Institute of Technology (MNNIT) Allahabad (e) Maulana Azad National Institute of Technology Bhopal (f) National Institute of Technology (NIT Kurukshetra)

As you know your perperentage according to cbse is avarage and on 170 in jee main you will lie somewhere in between 25000-30000 so your chances to get a good one with good branch are minimum. But as you say that these are excluded from drawing so rank may vary. Then your chances will increase overall you get a good score.
ALL THE BEST

Dear Sujith,
12th marks are not enough for taking admission in NIT. Admission to undergraduate programs are based on JEE exam. So if you are qualified in JEE exam and secured good marks then there are some chances for NIT. Well on other side, you can also try for well-known private engineering colleges. There are many recognized private engineering colleges available in India which are providing excellent engineering education along with best placement records.
Hope this information helps. Please feel free to revert.
Wish you luck.

Dear
Its depend upon your category , if you are belong general category then less chance of get admission in nits.
If you belong from obc than you will get admission in nit but top branch may not possible.Otherwise sc/st category then absolutely get admission in top nits and top branch.
best of luck

why not Brother.
since you r saying your overall rank is 4k, you will get any of Top 4 Nits.
congrats for your result.
Best of luck for Jee advanced.