2015 iit advanced rank vs marks
2015 Rank vs Marks statistics are below:
1-10 425+
11-50 380-420
51-100 356-380
101-200 336-356
201-300 322-336
301-500 302-322
501-1000 276-302
1001-2000 250-276
2001-3000 231-250
3001-5000 209-231
5001-7000 189-209
7001-10000 175-189
Hope this helped. Good luck.