India

You may evaluate following institutes for Aeronautical/ Aerospace Engineering degree: IIT Mumbai, PEC university, IIST, Manipal university and Amity university.

Yes, you will get the admission but without entrance (TNEA) it is not possible.

Hi Raseen,
The scope is better abroad for biotechnology field like in Canada, US, Denmark, etc. You can go abroad for your Masters, it will give you better exposure to research opportunities and also post study work options. Discuss with family and decide, you must also check finances, requirements, etc. before you decide. Work hard on your academics.

The salary in ethical hacking is based on which degree you have in ethical hacking and the most important thing is your talent.