M.Tech

M.Tech from a reputed institution is an asset in the acquisition of a job, in a reputed concern. It is not compulsory, but it is certainly an added qualification.

If you do M.Tech EEE from IITs or NITs then you can get good placement and will also have better learnings.

You need to have a minimum of 60% in your 10th, 12th and graduation degree to pursue this course from a good college.
You can do this course from one of these colleges:
1. Rajiv Gandhi Proudyogiki Vishwavidyalaya, Indore (madhya pradesh)
2. UP Technical University (Instt of engineering and Tech) Luckno

It is always better to go for post-graduation than doing Diploma or certificate course. If you have completed your graduation, then you should definitely go for M.Tech, you can do the certificate simultaneously for more knowledge.
A post-graduation degree always upraises your level and position and p

M.Tech is for design and teaching careers. For construction careers, B.Tech is sufficient for any company.

You can visit the below mentioned link for detailed information: https://www.shiksha.com/university/noida-international-university-greater-noida-53337/courses/me-mtech-bc

You can check the below mentioned link:
https://www.shiksha.com/college/dy-patil-school-of-engineering-dypsoe-lohegaon-pune-40764

Yes, you can take admission in BHU, Varanasi for this course.