Yes, you are eligible for enrollment to the Bar Council of Telangana. You have successfully completed a BA LLB degree, which is the primary requirement for enrollment. The university that awarded your LLB degree should be recognized by the Bar Council of India (BCI).
Your intermediate qualification from TOSS is not relevant to your eligibility for Bar Council enrollment. It's your LLB degree that is the primary determinant.

I hope this information helps.