Hey Aashu, 

Registration for the undergraduate programs (entrance based and merit based) have begun from 30th May,2019. Last date to register is in 4th week of June, 2019. Entrance exams for the entrance based courses will be held in the 2nd week of July,2019. Declaration of results and start of admission intake will begin in the end of July,2019.

You can find the registration link and further details in the official website of DU.

All the best!:)