Hello Laxman,

Hope you are doing good.

Good to know that you are pursuing Mechanical engineering. And most interesting is you're also interested in loco pilot or aeronautical engineering. Let me tell of wanna do one of the above you need some eligibility criteria:

Candidates aspiring to become a Loco Pilot must have passed the 10+2/equivalent examination from a well recognized board. Additionally, the candidate must have completed any of these courses:

1. ITI course from Institute recognised by NCVT or SCVT
2. Diploma in Engineering in any streams from an AICTE recognised institute
3. ACT apprenticeship course

Above mentioned are the educational qualification needed. And other eligibility criteria are:

• Qualifying the entrance examination conducted by RRB for the assistant Loco Pilot post
• Medical fitness after the CBAT (Computer-Based Aptitude Test)

FOR AERONAUTICAL ENGINEERING:

Applicant must passed 10+2 with Physics, Chemistry, and Mathematics or equivalent with AICTE approved University and 3 years engineering diploma in any stream or any higher qualification in science with Physics and Mathematics at the time of admission in Institutes.

ENTRANCE EXAM FOR THE SAME ARE:

*JEE (Joint Entrance Exam) conducted by the IIT's.

*All India Engineering/ Architecture Entrance Examination(AIEEE)

*Delhi University Combined Entrance Examination(CEE)

*Hindustan University Entrance Test(HITSEE)

*The Indian Institute of Aeronautics Entrance Exam(IIA)EE

and many more.

And for a police service you should be knowing UPSC and other government exams are held.

Hopefully this will guide you.

Best wishes for future.