Getting more than 80 marks will surely qualify you for jee Advance.



And



You have to score 20 to 30 % of total marks of jee Advance to get admission in good IITs

If a SC candidate gets more then 60-70 in jee mains he'll clear jee main cut off easily. and when it comes to jee advance you have to get more then 21% of maximum marks to clear jee advance. but to get admission you have to get more then 30%.

good luck