IIT

The IIT MADRAS is in TAMIL NADU. It was the third the oldest IIT established in 1959. You can check more facts and things about IIT MADRAS AT
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://en.m.wikipedia.org/wiki/Indian_Institute_of_Technology_Madras&ved=0ahUKEwjy6-3sxtXbAhVTfH0KHRs1DxoQmhMIfzAL&usg=AOvVaw2SYzgozJeiWt5knQ4iQrEj
BEST OF LUCK!

Yes, but you have to crack JEE Mains and Advanced too.

On the basis of JEE main rank, you could get a seat in NITs and IIITs but not in IITs. You should visit
https://josaa.nic.in/josaaorcrarchieve/Result/OpeningClosingRankArchieveN.aspx?Year=2017
and check the previous year's cutoff's of your HOMESTATE NIT first and then the other NITs you want. There you would get an idea of your selection. ALSO, THE REGISTRATION FOR COUNSELLING HAS BEEN STARTED FROM TODAY AND WILL BE AVAILABLE UPTO 25 JUNE 2018. So take care of the important dates also. BEST OF LUCK!

No, you must complete your graduation in physics.

Hello Juned,
Please do not worry about IIT. There are many better colleges if you really willing to learn. Or willing to do something new. If you want admission only in IIT, then you have to drop a year, or otherwise, you will have to take admission in another college. But think first about which course you want to do or what is your aim.

Hello,
I hope you are doing well. Below are the minimum marks list for JEE Advanced exam
Common rank list (CRL)
12 ( minimum in each subject )
126
90 ( revised )
OBC-NCL
11
114
81
SC
6
63
45
ST
6
63
45
Common-PwD rank list (CRL)
6
63
45
OBC-NCL-PwD rank list
6 ( minimum in each subject )
64
45 ( revised )
You are eligible to apply for IITs and can sit in counselling.

Hello,
I hope you are doing well. Yes, you have chances for NIT in MNIT, Jaipur for B.Tech with your rank. Please check the cutoff for MNIT under OBC category for different branches
- Chemical Engineering - 4220 - 6997
Civil Engineering - 2735 - 4514
CSE - 558 to 1827
Electrical engineering - 1536 to 2855
Electrical and communication - 2163 to 3960.

You can apply for private or autonomous campuses all over India. For those colleges, NATA is not needed.

Yes, you can expect a seat in any of the NITs. Warangal and Raipur are having more chances.

Hello Hermione, Always remember"Failure is never final". You can always get better by hard work. It's nice to see your aim of getting into IIST at Trivendrum. Eligibility for this is JEE Advanced and for that one needs 75% marks in 12th. However there are plenty of other good colleges with this branch. I am attaching a link that will give you all the required information about these colleges. Remove IIT's and have a look at other options. https://www.shiksha.com/b-tech/ranking/top-aeronautical-engineering-colleges-in-india/49-2-0-0-0.