Mechatronics Engineering

Mentioned below are some of the top mechatronics engineering colleges in Tamil Nadu:
Vellore Institute of Technology - [VIT University], Vellore
Sastra University, Thanjavur
SRM Engineering College, Kanchipuram.

Yes, you can surely join BE in robotics and automation after Diploma in mechatronics.
B.Tech/BE through lateral entry (direct second year admission) will be best for you, you have to appear for LEET examination to get a good college.

Yes, you can. For further details, visit SRM University the official site.

You are eligible for lateral admission. Visit site: http://www.paruluniversity.ac.in/admission/admission-process/admission-procedure/

Before judging self, You have to fight first. Before arriving to any conclusion please be participate in JEE Main April-2019 exam. I hope everything will be fine for you. Further top Central government. Colleges like IITs, NITs and state government colleges requires high marks and ranks in JEE exam.

If you are opting for a good government college, it may vary from 60 thousand to 2 lakhs per annum and for a private college, it may vary from 1 lakh to 5 lakhs per annum.

Yes you can as the minimum eligibility is class 12th
Details : https://www.shiksha.com/aviation/flying-pilot-training/course/training-for-commercial-pilot-s-license-government-flying-training-school-yelahanaka-bangalore-117397