Hello aspirant

No, you can not do M.Tech after BSc . You can do M.Tech only if you have B.Tech or B. E. Degree in any of Engineering or Technical discipline.

If you are BSC then you have to do MSc first to do M.Tech.

However you can do M.tech in material Science engineering of Maysore University after BSc.  But for other streams in m.tech you should have B.E. or B.Tech degree.