Colleges in Coimbatore

Yes, you are eligible and need to have mandatory subjects Physics, Chemistry, Mathematics.
Candidate must have passed 10+2 from a recognized board.

You must have 10+2 from a recognized board or 3 year Polytechnic Diploma.

The second cycle of admission interviews will be held during March last weekend. The dates would have updated in the official website of PSG Institute of Management. Be clear with a good number of trending group discussion topics and also the question "Why do you want to pursue a master degree in management? ". This will help you clear the interview.

PSG Anna MBA is definitely the best option, if you want to pursue in India. Only if you prefer studying at overseas, choose MBA-UT,

Management Aptitude Test (MAT) is a national level MBA entrance test, conducted quarterly by the All India Management Association (AIMA). You should go for both the exams if you belong to Tamil Nadu otherwise, only MAT, if you want to pursue an MBA.

You should pass your HSC or equivalent with Mathematics, Physics and Chemistry, with an aggregate of minimum 80%.

Your thought is better, as after the B.Tech in agriculture engineering. You can go for lot of jobs in various agriculture departments like AO. etc., And, Mechanical Engineering is also a very good Branch in engineering.