Hello Varsha,
According to the Tamil Nadu MBBS BDS Eligibility Criteria, you should be a domicile of Tamil nadu to be eligible for admission. Also, the candidates who have studied class 6 to 12 partly or completely outside Tamil Nadu, have to produce the domicle certificate.
You can go through the link below to check the detailed eligibility criteria-

 https://medicine.careers360.com/articles/tamil-nadu-mbbs-admission

Good Luck!

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