Hey,

With 512 marks, you will get a rank between 37780-38736. You can check here https://medicine.careers360.com/articles/neet-result-marks-vs-rank

Based on previous year cut off, you may get a seat in the following medical colleges under 85% State Quota in Bihar :

• Katihar Medical College
• Lord Buddha Koshi Medical College
• MGM Medical College, Kishanganj
• Madhubani Medical College
• Narayan Medical College
• Buddha Institute of Dental Sciences
• Mithila Minority Dental College
• Sarjug Dental College

To know more about Bihar cut off, check here https://medicine.careers360.com/articles/neet-cutoff-bihar

It is not possible to accurately say about the fee structure as it has not been released for this year.

To get a complete list of colleges in which you may get a MBBS/BDS seat, you can use NEET College Predictor https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer