Dear Shivani,

DTU will take admission through JEE Main and counselling will be held through JAC Delhi.

You have to apply for JAC Delhi application form to be eligible for the counselling.

It is expected that JAC Delhi 2018 application form will be out tentatively on second week of June. 

To know in detail you can refer below link

https://engineering.careers360.com/articles/jac-delhi-application-form

Good Luck!!