Aeronautical Engineering

Aeronautical Engineering is a course mainly deals with Design and Manufacturing of Aircraft /Aerospace Components. Since, you already have an experience as Supervisor in Mechanical (Hope in Production). You can get a good job into production of Aviation components.
In India, we have many manufacturing companies related to aerospace production at Bangalore and Hyderabad location. Most of the companies related to aerospace components in manufacturing are wont advertise or Named with aerospace Pvt. limited and so on. My advise is to please show your patience in searching through search engine websites with some keywords which also includes AS9100 Rev C Certified Companies because when a company needs to produce a components in Aerospace, it has to get a certification of AS9100 Rev C.
Since, you had completed Diploma (Fire and Safety), you can select your profession in fire and safety. It will also be a good option. Once you got experienced in this domain, a huge opportunity knocks to get into petroleum industries at UAE, Saudi Arabia, etc.

Becoming a pilot and becoming an aeronautical engineer are two entirely different career fields, change over from one to another is not possible. To become pilot, you need to obtain Commercial Pilot license (CPL) or join Indian Air Force. Both can be done after completing 12th with Mathematics, Physics and English as subjects. CPL is granted after completing SPL and PPL and 250 hours of solo flying and requires investment in the range of Rs. 50 Lac. There are many Flying training schools in almost all the states to accomplish this. To join IAF as pilot, you need to qualify NDA exam and pilot aptitude test. If you succeed then your entire training will be free of cost and you can become an officer in IAF.
To become an Aeronautical Engineer, one can pursue Mechanical, Electrical, Electronics or Computer science branches of engineering from any AICTE recognized engineering college. Then you can apply in IAF, Airport authority of India or DGCA.

Hi Syed,
Candidates who want to pursue Aircraft Maintenance Engineering course should have completed 10+2 with at least 50 per cent marks in Physics, Chemistry and Mathematics.
Aircraft maintenance engineering is not a degree or diploma program, but it is a training programme. After the successful completion of the training, a license is issued by the Directorate General of Civil Aviation (DGCA). During the training session, students will be taught about the service and maintenance of aircraft so as to ensure flight safety.
There is an upper age limit of 23 years to enter the programme. Upper age limit may be relaxed for those who have done three-year diploma course in engineering (in any stream) or B.Sc. after 10+2 with Physics, Chemistry and Maths.
After completing the training program, candidates have to appear for aircraft maintenance licensing examinations held by DGCA.
The licenses are issued for a particular type of aircraft. Hence, aircraft maintenance engineers who hold license of servicing Boeing planes are authorized to inspect only Boeing aircraft and certify its fitness.
After the successful completion of AME course, you can appear and qualify for AMAeSI (Associate Membership of Aeronautical Society of India) which is fully recognized by Government of India/ State Government/ Union Public Service Commission/ GATE for M.Tech admission/ Hindustan Aeronautics Ltd/ Indian Airlines/ Air India/ BHEL/ DRDO/ NAL/ IAF/ Coast Guard/ Airline Industries/ Birla Institute of Technology, Ranchi/ Madras Institute of Technology as equivalent to BE/ B.Tech (Aeronautical Engineering).
Please refer to the article for further details:
https://www.shiksha.com/aircraft-maintenance-engineering-article-4626-1
Hope this information helps. Please feel free to revert.
Wish you luck.

Hi Puranjay,
Aeronautical engineering is one of the most challenging branches of engineering. It has a wide scope of growth in the field of engineering. This field is concerned mostly with the technical as well as the mechanisms of the flying aircrafts. This is an emerging field. This field deals with the development of new technologies in aviation and defense systems. This field mainly consists of the construction, designing, working, testing, operation, maintenance of the space crafts, satellites, missiles, space vehicles, etc.,
These are the top Aerospace/Aeronautical colleges in India
1. Indian Institute of Technology Bombay
2. Indian Institute of Technology Kanpur
3. Indian Institute of Technology Kharagpur
4. Indian Institute of Technology Madras
5. PEC University of Technology, Chandigarh
6. Bengal Engineering and Science University, West Bengal
7. Manipal Institute of Technology, Karnataka, Manipal
8. Sathyabama University, Chennai
9. Acharya Institute of Technology, Bangalore
10. Amrita School of Engineering, Bangalore
For admission in a bachelor's degree, you need to complete 10+2 examination with science subject such as physics, Maths and Chemistry. For IITs, It is mandatory to qualify in the Joint Entrance Examinations (J.E.E). The duration for this course is 4 years.
Some of the exams are:
UPSEE
SRMEEE
CET
COMEDK
KCET
EAMCET
MPPEPT
KEAM
GPET
BITSAT
Also, some engineering institutes conduct their own entrance examination for admission. Below is the link for institutes offering engineering. You can refine the list as per your branch and city preference.
https://engineering.shiksha.com/be-btech-courses-in-india-ctpg?sort=none&nl=0
For your preparation, you can join a good coaching institute as these coaching institutes will prepare you for not only engineering, but for your 12th as well.
For the list of coaching institutes, kindly refer to the below link:
https://testprep.shiksha.com/iitjee-entrance-exams-coaching-classes-in-india-categorypage-14-48-836-0-0-1-1-2-0-none-1-0#cateSearchBlock
However, there are few question which one should ask the coaching institute before enrolling. For the list of questions, refer to the below link
https://www.shiksha.com/10-most-important-questions-you-must-ask-before-joining-a-coaching-institute-article-7594-1
Wish You Luck!