Career

Dear Sunita,
In India, I don't think that there is any specialisation for 'Astrobiology' neither job also. You can go abroad for the same.
For further queries, feel free to revert.
Good wishes.

Hi, if you want to become an astronaut then you must do astrophysics as it is the study of mostly space but in simple physics, you do not get the opportunity to gain more knowledge about space.

B.Tech Aeronautical Engineering prepare students in designing and building aircraft and spacecraft. Aeronautical engineers handle design, manufacturing and maintenance of aircraft, helicopters & UAV. There are lots of good career opportunities on completion of Aeronautical engineering. You can join DRDO/ ISRO/ Aviation manufacturing or its ancillary units/ Airlines/ Air Force/ Educational Institutes/ R&D Units / IT etc after Aeronautical engineering.

It solely depends on your choice. See, being an engineer, you can go in the research departments like BARC, DRDO, ISRO, etc. At the end of the day, the crux is to gain supremacy in the subject which you have joined and you should love it.

As the advertisement industry is on peak these days, you can surely join as a copy writer and it will have a good career growth.

You can either pursue modelling course for acting course after completing 12th. Refer to the link below:
https://goo.gl/1ZSt7n

Well, if you are really interested in it, then you must have to quit your job as per the UGC guidelines for PhD. Second, you can also apply for JRF for your research. JRF means Junior Research Fellowship in that UGC will pay you for your research.