Computers & IT (Non-Engg)

Hello Mukesh,
Yes, you can. Mechanical engineering is the base of many specializations like automobile, robotics Mechatronics, aerospace, etc. So, if you have done a Bachelors in Mechanical then you can do M.Tech in robotics.

The fee structure of BCA in the top colleges ranges from 2 to 3.6 lakh rupees for the entire course.

Mentioned below are the best colleges for integrated MCA:
Christ University, Bangalore
Department of Computer Applications, SRM University, Chennai
Institute of Management Studies, Noida
Madras Christian College, Chennai
Birla Institute of Technology, Ranchi
Presidency College, Bengaluru
University College-Kurukshetra, Kurukshetra
Stella Maris College, Tamil Nadu
*Follow the official website of these colleges for more details.

Check out the link below for all the relevant details:
https://www.shiksha.com/college/alagappa-university-distance-education-tamil-nadu-tamil-nadu-other-24658/courses?bc[]=101&ct[]=193

It would be difficult to get into the top colleges because you will not be able to meet the eligibility criteria for the entrance exam in terms of required BCA percentage.
For MCA colleges, check out the link mentioned below:
https://www.shiksha.com/it-software/colleges/mca-colleges-india

Yes, IIBM provides online course six sigma black belt and six sigma green belt courses. You can enrol for the same through their website:
www.iibmindia.in