Hello Azil,
Eligibility Criteria for admission to DTU is candidate should have scored atleast 60 percent marks in Physics, Chemistry and Mathematics. English is the compulsory subject and the candidates need to pass each of the above subjects individually also.
Admission is done on the basis of JEE Main scores through JAC Counselling.
85% Seats are reserved for Delhi Region candidates and the remaining 15% seats for Outside Delhi Candidates. So, being from the other state you can apply for 15% seats. You will have to qualify the JEE Main exam and the cutoff of DTU also.
Good Luck!