Hello rohit....

I am assuming you as an general category student so according to previous year's cutoff at the last round the rank of the last students from this category is  nearly 500-600 and as according to it you can refer the article below for the cutoff rank for other categories.

You can  get previous year rank wise cutoff for both board marks and its entrance exam  marks based rank list below

http://du.ac.in/adm2019/pdf/24072019_BElEd_Rank_wise_Result_1.pdf

And from the below rank you can get the previous year cutoff in which ranks are given for every category applicable

http://du.ac.in/adm2019/pdf/ADMLIST/UG/05082019-BELED_THIRD_LIST.pdf

all the links are of official college sites link links so you can totally believe it.

All the best