M.Tech

Hello Sonam,
Yes, you may pursue the course.
Generally, to pursue M.Tech, candidates need to pass graduation (B.E. / B.Tech) in the relevant field with minimum 50% and 45% for reserved categories from a recognized university. Candidates need to sit for an entrance exam.
Some of the good colleges offeri

To pursue Master’s degree in any field, you must have a Bachelor’s degree in the same. Since, you've completed your B.Sc, you can opt for M.Sc.
All the best.

You can get a job as it will give you some practical experience.

Below mentioned are some decent institutes:
1. Netaji Subhas Institute of Technology.
2. PSG College of Technology.
3. Thapar University.
4. Vellore Institute of Technology (VIT).

Check out the link below for colleges :
https://engineering.shiksha.com/me-mtech-in-mechanical-engineering-in-delhi-ncr-categorypage-2-59-587-0-0-10223-1-2-0-none-1-0

You can pursue this course in the college of Maharashtra.