Hello dear student,

you must be aware that there are several states when we talk about South India you have to be particular about this state you are talking about in which you want to get admission in. While I can give you an overview depending upon college to college minimum marks that you should get to get admission in any college as you belong from SC category should use to do the minimum criteria of minimum marks you should get to get admission in government Medical College is around 450 to 500. As every year cutoff changes and marks increases with the increasing competition. here I am attaching a link you can check which college you want to get admission in an accordingly you can check the cut off marks of 2019 as the link and sharing is off 2019  cutoff marks. https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cut-off-for-government-colleges/amp

I hope this was helpful to you

Best wishes