Hi,

Hope you are doing great.

The basic eligibility to apply for EAMCET is that:

• Candidate must be Indian nationals, POI.
• The candidate should belong to the state of Telangana or Andhra Pradesh.
• Candidates should satisfy the local/ non-local status of Telangana or Andhra Pradesh.

As you stated above that you belong to Tamil Nadu. So you are not eligible to apply for EAMCET due to nationality.

For more details: https://engineering.careers360.com/articles/ts-eamcet-eligibility-criteria

Hope this helps.