Dear Rishu,

It is very difficult to predict the college but according to you,  you got 83 percentile in JEE Mains then your rank would be around 173910 - 195500 and you do not mention your category. So I am assuming that you belong to general category and also you are belonging to other state region. There is no chance to get admission to DTU for B.tech. And there is minimum chance to get admission to IPU for B.tech.

You can predict rank from the link given below

You can  predict  colleges from the link given below

To more information about DTU and IPU :-

Delhi Technological University (DTU) Delhi: Admission 2021, Courses, Fee, Cutoff, Ranking, Placements & Scholarship (careers360.com)

IP University: Admission 2021, Courses, Fee, Cutoff, Ranking, Placements & Scholarship (careers360.com)

Hope this information helps you...

Best of luck :)