Hii

No there is no other entrance exam which is excepted by DTU for admissions. You need to appear in JEE Mains and qualify with a decent score and then apply in JAC councelling.
The cutoffs are different every year and for every branch. So it is not very easy to predict it but you can go through the previous year cutoffs to get an idea of how the selection process has been.
here is a link for the same - https://images.careers360.mobi/sites/default/files/JAC-Delhi-Cutoff-2017-Round-6-DTU.pdf

Hope this helps
Thanks!!