i have 521 rank in MBC category in tamilnadu . can i get govt medical colleges?

Going by last year's cutoffs, you have chances to get seat in
Dharampuri Medical College

• ESIC Medical College KK Nagar Chennai
• Government Medical College Karur
• Government Medical college and Hospital Pudukottai
• IRT Perundurai Medical College
• Karpagam Faculty of Medical Sciences and Research
• Sivagangai Medical College

etc and government quota seats in private Medical colleges like Tagore Medical College, Sri Muthukumaram Medical College and Hospital etc. But keep in mind that these are based on last year's data and this year the cutoffs can change. To get complete list of all colleges you can get based on your rank use this link http://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer