CBSE 10th

No, this is not at all possible to change the board and study via distance mode.

No, that's not really necessary. But, it would depend on colleges.

For that, you will have to complete (10+2) intermediate education System. And after that there are specific cutoffs for JEE Mains, which would let you decide your branch, all the best for future.

Not at all it's necessary to complete (10+2) means your intermediate, so all the best for the future.

Yes, the choice may affect in future so choose wisely.

For Bachelor's degree in any stream, you must have to complete class 12th first.

Hello,
In some regions class 12th or Diplomas are known as a junior college. If you are asking with this reference then yes you can. And if you are asking for a Bachelor's degree then no you must complete your class 12th first.

No, you must have to complete class 12th first, then you can apply for the admission.

Hi,
For more information on this you can go through this link
Click on the link for more details:-https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0

Yes, it is also a good choice. You can join BTech in Automobile Engineering after class 12th under which you can work on car designs.