Science

The eligibility criteria of DSSSB TGT Maths is given below.
1. Educational qualifications : A Bachelors Degree or equivalent with at least 45% marks from recognised University in the concerned subject.
2. B.Ed. From a recognised university
3. Pass in the Central Teacher Eligibility Test (CTET)
So from

You have to opt for National Institute of open schooling (NIOS). Here you can do the class 12th with Maths and Science as per your needs. However you can not change your stream during the current academic session.

Yes, you can take. The eligibility criteria of B.Sc (Hons. ). Agriculture through ICAR AIEEA UG 2020 is class 12th with a minimum 50% of marks in PCB/PCMB/ PCM/Inter-Agriculture.

Yes, you are eligible for NEET and BVSC Ah. The eligibility criteria of NEET and BVSC. AH is class 12th with a minimum of 50% of marks in PCB for general candidates. So, you can apply for NEET and BVSC AH course.