Aeronautical Engineering

Yes, it is a good career option because it is growing. This field is in its saturation period since no new companies came to India in this field and not enough investments are made in home grown and except government organisation's None of the private companies are not really doing any scopeful Aerospace related jobs here, to employ you. Remember they all just manufacturing units. I have witnessed my friends (toppers to under performers) joined in airlines crews and ground station crews posts for which you don't need to study this hectic Engineering, just good English and appealing personality is enough. And some of them went for Masters to other countries and they were happy and blessed I thought, but now I started to hear that half of them came back, because they could't find job within their visa period and could't find visa sponsors. If you are very talented and enough back pack of cash to sustain in western countries I would say you to give a try.

Yes, it requires only 10+2. So definitely can. For becoming a commercial pilot, there is a specific eligibility criteria, which you should first be aware of. This is decided on what subjects have you taken in class 12th. It requires PCM to be a pilot. And, even if you have not opted for the same, then you can appear separately for these subjects and become eligible. Further, you should be aware that you are medically fit to be a pilot, so I would suggest you to visithttp://www.dgca.nic.in/medical/medical-ind.htmandgototheclass2nd examiners tab to find out doctors who will examine you for initial fitness. You can visit any doctorate from the list as per your convenience. Once you are done with Class 2nd medical, find out a suitable flying club for you as per your convenience. You can fly in India or abroad. I would suggest you fly in India. Besides finding the club, be aware that you will have to appear for:
1. Air Navigation
2. Aviation Meteorology
3. Air Regulations
4. Aviation Technical
5. Aircraft Specific
6. Radio Telephony
Here, 1-5 are conducted by DGCA and 6 is conducted by WPC. Prepare for these subjects and appear, as exams are conducted every quarterly. For preparation, flying club will help you or there are private instructors available in metro cities as well. You will fly for 200Hrs + Clear DGCA and WPC exams + Clear Class 1st medical, then you shall GET your CPL. The next license is ATPL, which you shall be able to apply for once. You will then have to probably fund or self-sponsor your type rating on whatever fleet you are selected in an airline. Then, you finally GET a job as a pilot. I hope the process is well explained to you. CPL is an expensive affair. It might cost you around Rs.18-20 Lacs for flying + DGCA exams Rs.500/- each exam + Medicals for Rs.10, 000 + endorsements and license issue fees around Rs.25k + Type Rating around Rs.15 Lacs. So, decide wisely before you enter the field.