Engineering

Please create a good profile in your work. Take a couple of years. Have some good projects. And, then apply. 58 is indeed a huge number. So, basically you need to cover that up by some other credentials involving GRE TOEFL etc.

6768 is the cut off rank for TFWS for Bharati Vidyapeeth's College of Engineering, Lavale, Pune.

Yes, surely you can get a government engineering college in Uttarakhand with mechanical branch.

Yes , you can study

Chance will be there, actually July 8 can announced.

No, you can't get lateral entry in B.Com after Diploma. You can only get admission in B.Tech if you want to take admission via lateral entry.

Well according to the 2017 notice from training band placements cell of MNIT out of 66 eligible students of electrical engineering 54 were placed with the average package of 6.58 LPA and the highest package of 16.17 LPA. This looks pretty good in terms of placements of MNIT, Allahabad. MNIT, Allahab

If you really want to be a cook.
It is very good.
Do a research about the field, find each and every aspect of the cooking.
This will increase your knowledge about the field too.
Then, you can find out the possibilities and the way which is reliable to you.
In this case, I can only suggest you to follow