Degree

If you want to opt for B.Tech then do study till class 12th. It will prepare you for the coming years of your B.Tech. See if you want to end your school in class 10th and start pursuing higher studies, that is fine but it is your choice. Since you are saying you want to do B.Tech then I would suggest you complete your 12th and then directly do B.Tech. You can opt for Diploma after 10th and then do B.Tech through lateral entry.

It completely depends on the university, generally the universities don't allow to continue after such a long gap. Although, we can't say what the university decide.

Go for RULET or crack any three year law course entrance examination. Do up vote and follow, if my answer helped you in any manner.

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Hi,
According to me, you should pursue B.Tech degree. B.Tech will fetch you the knowledge of maths, English communication and logical reasoning.
Have a good day.
Thank you.

Hi Suraj, You can only pursue Diploma course in technical after B.A. Because technical courses stream demand Science stream. However, you can pursue a Diploma course like CCNA. All the best.