Hello Dear,

Based upon your score in NEET 2018, and the previous year cutoff, chances are there for admission to Government Medical Colleges under state quota. You may have chances in Private Colleges at state level quota. Use NEET College Predictor to Check Your MBBS/BDS Chances in Deemed Universities & State Quota seat Based on Your NEET AIR

   https://medicine.careers360.com/neet-ug-college-predictor?icn=neet-clgpd&ici=qna-answer  

also, check previous year cutoff:
https://medicine.careers360.com/articles/neet-cutoff-tamil-nadu

good luck