Hello Ujjawal Varshney. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

Yes, you can definitely apply for any college in Tamilnadu using this TNEA counselling window. Note that Anna University, Chennai is the conducting authority for this counselling.

I would like to direct your attention to this link for more information about the other state counseling of Anna University:

• https://www.tnea.in.net/tnea-other-states/

Hope this helps you and all the best!