Hello aspirant!

Yes, you can apply for Tamil Nadu Engineering Admissions using your 12th marks.

There are many government colleges for engineering in Tamil Nadu which are affiliated to Anna University.

Anna university is the top and best college in Tamil Nadu

There are 10 government colleges of engineering in Tamil Nadu.

There are 11 colleges of Anna University campus in various districts.

Finally there are four Government Aided Colleges such as

1.P.S.G College

2.Thiyagarajar college

3.Coimbatore Institute of Technology

4.Institute of Road and Transport Technology.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/colleges/list-of-government-engineering-colleges-in-tamil-nadu&ved=2ahUKEwjq55yFiI3yAhXcyjgGHajBBEYQFjAKegQIIRAC&usg=AOvVaw2ndWTrsN9plfMMeYnADwt0&cshid=1627727241261

You can refer to the link given above for your further reference.

Hope this information helps you.

Best of luck!