Hi,

The minimum eligibility criteria for students of other states to apply for TNEA entrance exam is that they should complete 12th boards with a minimum aggregate of 50% in science stream (Maths, Physics & Chemistry). This is for general category students. For SC/ST students, the minimum aggregate should be 40%. Candidates should also produce good results in all the three science subjects besides getting the minimum eligible marks. Candidates should also produce a certificate of Permanent residence in the set format in English if they reside in any other state other than TN.

Hope this helps.

(https://www.iaspaper.net/tnea-for-other-state-students/)