IIT Madras - Indian Institute of Technology

DTU CSE will be a better option for you if you have interest in coding or in computer or else go for IIT madras mechanical.

You need to score more than 280 marks in order to get Aerospace in any of the IITs.

No, chance if you are from outside of Delhi.

Yes, if you will get more than 8.5 GPA, then you can.

Both are good institutes but are knows for separate specializations. MICA is knows for Media related specializations & IIT madras for Engineering related domains. You need to decide what to pick up keeping in mind your interest areas and long term career aspirations.

Please Check online on IIT madras official website
Best of luck.

Hello Basith Ahmed, the webportal which is accepting registration for JEE Advanced has a detailed FAQ section that will clear all your doubts about the process of admission for NRI students in IIT's. I am attaching this link that will give you all the required information. https://jeeadv.ac.in/
Best wishes.

Hello Mr Ahmed, It's very nice to hear from you that your nephew is interested in doing his engineering in aeronautical branch from IIT Chennai. You will have to hurry up. Last date for registration for NRI is 09 May. I am attaching a link that will give you all the required information about different aspects of the process to register for JEE Advanced. https://jeeadv.ac.in
Best wishes for your nephew.