which options are available for me having SC category Rank and marks 647 out of 720?

Through all India quota, you have pretty good chances of getting a government college such as

• Dr RML Hospital
• Dr BSA Medical college
• BJ Medical college
• Bangalore Medical college
• Grant Medical College and Sir JJ Hospital
• Seth GS Medical College
• SCB Medical college
• SMS Medical College
• Gandhi Medical College Secundrabad
• Osmania Medical college
• King George's Medical University
• Institute of Medical Sciences BHU
• Medical College Kolkata

and many more. 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

Hello Candidate,

You haven't mentioned your State but

You will surely get a good medical college in general catagory.Dont have to go after your caste cirtificate.If you are aiming to get seat user DU (DELHI UNIVERSITY) SC cirtificate will help you.

For more you can check this,

https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer