Hello,
Looking at the previous years closing ranks, it is not possible for you to get a seat in dtu. The last rank at this institute for last year was 839695 for delhi region and 701250 for delhi region. So, you might not have a chance to get a seat here. If you believe you can get a seat, you can give it a try, but in my opinion it might not be in favour of you.
Good Luck!