Specifically in civil engineering a lots of students have appeared in gate exam. So we can't predict anything by just looking into the pervious year cutoff. I think you will get a admission call from DTU by looking into previous year cutoff, but can't be assured that same trend of score will be followed this year. For more information you can refer the link below:-

https://www.engineering.careers360.com/articles/dtu-mtech-cutoff

There are 50-50 chances/possibilities to get a seat in DTU or not in Civil Engineering.

Thank you!