Hello aspirant,

The eligibility criteria for TNPSC group 1 are as follows.

A candidate who has qualified education pattern 10+2+4.

Candidates in the final year can also apply for the exam

Irrespective of your second language you can apply for the posts in group 1. The only requirement in your educational qualification is that you should be appearing g final year or a graduate from a recognized university

I hope this helps!

Thank you!