Hello Dear,
According to the candidates appearing for Advanced exam 2020, difficulty of paper, number of seats allocated, the cut off will be released. According to the cut off percentile in JEE Advance 2019 for SC candidate is 49-63, for this percentile you should score 28-37 marks(tentative).
If you have any other queries you can go through the link: https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
Hope this helps you.
All the best!!!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile