B.Ed Mathematics

Yes you are eligible for TGT Mathematics. The eligibility criteria of TGT Maths KVS are given below for an idea.
1. Educational qualification: Bachelor's degree with a minimum cumulative grade point average of 50% in the relevant topic or combination of subjects. The combination of subjects' electives and languages are as follows:
Bachelor Degree in Maths with any two of the following subjects: Physics Chemistry Electronics, Computer Science, Statistics.
2. B.Ed. Or a degree of equal standing from an accredited university.
3. Pass the Central Teacher Eligibility Test CTET Paper-II, which is administered by the CBSE in compliance with the standards established by the NCTE.
4. The ability to teach in both Hindi and English .
5. Maximum age: 35 years (5 Years relaxation to reserved categories)
6. Knowledge of computer applications is a desired qualification.