IMS Engineering College

Hello Om Prakash, you have just mentioned two words : Mechanical engineering. I am afraid that these words neither give any information or can guess to possible query. I can only say that mechanical engineering is an evergreen branch and you should not hesitate if you are getting it. Best wishes to you.

Yes, you can get admission for MBA. The candidate should have minimum 50% overall at their UG level. I would suggest you take up competitive exams like CAT, MAT, CMAT, etc. as you will have more options of colleges to choose from. You can also get direct admission for MBA without any entrance exam through management quota.
Here is the list of top MBA colleges:
1.ISBR Business school Bangalore
2.Acharya School of Business Bangalore
3.FIIB MBA Delhi
4.Alliance University MBA
5.Christ University MBA
6.Symbiosis MBA School
7.IFIM-Business School
8.ISBM Pune
9.ITM Navi Mumbai
10.ISME Bangalore

As per the eligibility for M.Tech, you must have done either Btech or (Bsc+Msc), then only you can apply for M.Tech program. Since you have done B.Sc in Biotechnology, you further need to pursue Msc in any specialisation of Biotechnology
Yes, you can do m.tech after b.sc in maths. sit for gate, score good and get admission to the college of your choice.

Hello,
Kindly visit this link for the detailed information:
https://www.shiksha.com/college-predictor

You should have atleast 75% attendance for sitting in AKTU University examination, while the college will force you to have atleast 90%/ attendance in first year.

It is hard and probably, you can't get admission here.

https://googleweblight.com/i?u=https://www.shiksha.com/b-tech/resources/upsee-college-predictor&grqid=Ap7nYs5L&s=1&hl=en-IN
Please go to link for knowing this.
Good luck.

At the time of admission, you can come to the college and meet with the registrar then some teachers take a casual test and they will tell you about college, college fee, etc.

At this rank, go for colleges like:
JSS
KIET
Galgotias
Gl Bajaj
ABES
AK Garg Engineering College
IMS Engineering College
IPEC
NIET
All the best.