DTU - Delhi Technological University

For Outside Delhi Region Candidates (15% of seats):
Students must have passed any of the following examinations from a reputed School/College/Institute (located outside the National Capital Territory of Delhi). They shall secure a minimum aggregate of 60% in Physics, Chemistry and Mathematics. Students must have passed English as a subject of study in the Senior School Certificate Examination Level (Core or Elective). Passing in each subject separately is necessary.
Bachelor of Science (General) or Bachelor of Science (Hons.) examination of a recognized university with combination of Physics, Chemistry & Mathematics with minimum aggregate of 60% marks
Indian School Certificate Examination (12-year Course) of the Council for Indian School Certificate Examination, New Delhi
Any other examination recognized as equivalent to the Senior School Certificate Examination of the C.B.S.E.
Senior School Certificate Examination (12-Year Course) of the Central Board of Secondary Education (C.B.S.E.) New Delhi
Age Requirement-Applicants should be between the age of 17 and 25 years on or before the first October of the year in which they are seeking admission.
Hope this helps!

Admission to DTU is only based 12th marks as well as JEE Main marks. So you just need to score very good and enough marks for getting admission in college. But according to DTU eligibility criteria, the minimum percentage is 75 in 12 for being eligible for admission. It doesn't mean that you are now selected. You are just eligible for the admission. Now if you score very good marks in JEE Main then you may easily get the admission. I will advice you to score more in 12 like 85+ since the cut off is very high and in JEE Main you must score near 200 if you are under general category. Best of luck. For any further query please feel free to ask.