Pavan, 

You need to give jee main exam and you have to clear it with a good rank then you have to apply separately for DAIICT counselling.  A final merit list will published.

Important dates are

Filling of online Application Forms commences on 29 April 2019

On-line application closes on 28 June 2019

Announcement of First Merit List 5 July 2019

Last Date of Fees Payment for shortlisted candidates 12 July 2019

Registration for Fresh B Tech Students (All India) 29 July 2019

Orientation of Fresh B Tech Students 31 July – 2 August 2019

For detailed eligibility criteria and other things go to the link

https://www.daiict.ac.in/admissions/undergraduate/all-india-category/