As you have asked about the quota for the Delhi students in Delhi University, I am giving you information about it, check below for the details

I want to tell you that there is no special quota for the Delhi students in Delhi University.

I am mentioning some of the reservation criteria:
Reservation for SC/ ST candidates:
22.5% of the total numbers of seats are reserved for candidates belonging to Scheduled Caste / Scheduled Tribes
(15% for SC and 7.5% for ST).
Relaxation to the extent of 5% in the minimum marks will be given to candidates belonging to SC and ST to determine their eligibility and merit for admission to the course concerned.

Other Backward Classes (OBC)
A total of 27% seats will be reserved for the candidates belonging to the OBC category.
OBC candidates shall be given a relaxation of 10% in the minimum eligibility marks

Persons with Disabilities (PwD)
Around 3% seats in all undergraduate and postgraduate institutions

Armed Forces
A total of 5% seats in each course have been reserved for Children / Widows of Officers and Men of the Armed Forces including Para-Military Personnel

Foreign Students
DU has prescribed a 5% quota for foreign students.