IIT

Hello Baliram,
In aeronautical engineering, study revolves around aviation where theories are limited to air but astronautics comprises of space study. Both are better according to my perception. Sectors for jobs are Boeing, Taneja, TAAL, BHEL, Mahindra, ISRO, DRDO, etc.

My opinion is that you have to take admission in an autonomous college. You can easily get YCCE if you want.

Exams for IITs (JEE Mains and JEE Advanced) for 2017, are already finished.
If have not applied in it then try to get admission in the colleges which are giving admissions without JEE Mains.

Hello Anish, the list of colleges that will meet your requirement are in the link given below-
https://www.shiksha.com/b-tech/colleges/b-tech-colleges-india?uaf[]=location&uaf[]=specialization&ts=8468240&rf=filters&ct[]=10223&st[]=126&st[]=127&sp[]=84&ed[]=et_20
Hope this helps! All the Best!

You'll have to score more than 75% in your 12th . And also you will have to clear JEE Mains. These two things will make you eligible to sit in the JEE advance exam. Once you clear JEE advance you can apply for counselling and you will get one of the college as per your rank.
Good luck.

Yes, you are eligible as you can appear for JEE Advanced 2 times after 12th.

If you are from general category, then it seems quite difficult. But with some reservation, you might get a seat. But still you can try for some lower branch in new IITs. You might get one. But again, you cannot be dependent only on this. Go for NIT counselling as well and other IIIT counsellings.
I hope this was helpful.