The competition increases year by year. And such way marks cannot be predicted. Because they depend on various factors like number of candidates appearing and also the paper level, etc. So it's tough to answer.. But still I'll try to give the application level. You need to score around 230-250 or even above to get a rank of 2500 and below. It will also depend on how the competition stays in the given exam this year.

Best wishes. Thank you.