State rank matters only for the admission to NITs as in NITs sum seats r reserved for each state in ratio of there population.
But the IIITs & the other private colleges consider only ur AIR........
As u r from Delhi which has a very small population so seats reserved for Delhi in each NIT is very samll i.e.1 or 2 seats in each branch, but u may see the OP-CR ranks at aieee.nic.in for Delhi in different NITs .........