Dr. B.R. Ambedkar Open University (BRAOU)

No, first of all you have to complete your Diploma, then you are eligible for B.Sc.
All the best for your future.

Yes, you can do M.Sc Environmental Science through distance/correspondence in BRAOU.

Hi,I am from Hyderabad, I have listened that there is no need of Entrance Exam for M.Sc (Post Graduation) for BRAOU. You should have complete your under Graduation.

Hi,
You can check all your doubts through the link provided below:
https://www.shiksha.com/science/colleges/distance-correspondence-m-sc-colleges-bangalore

Hi,
If we talk about your eligibility for MSc (Maths), then you are eligible as you have done B.Tech and any graduate can go to pursue MSc (Maths), but choosing maths completely depends on your interest.I advise you to have a look on the syllabus of MSc (maths) and then analyse whether you can do it with your interest or not.
All the best.

Yes, you can take admission in B.A. LL.B. if you have passed your 10+2 with aggregate marks of 50%.