Hello aspirant,

YES you are eligible for Tamil Nadu Bar council. The eligibility criteria for Tamil Nadu Bar council is as follows :

50% minimum for 12th and 10th.  a student after 12th can opt for law by giving law entrance tests.

A candidate can also appear for CLAT and take an admission in any law college across India as it is a National entrance exam.

there are state entrance exams conducted by universities too for tamil nadu  to take an admission in different affiliated colleges.

Further, there is no age limit for Tamil Nadu Bar council.

I hope that this will help.