Visit the CoWIN portal: https://www.cowin.gov.in
Click on “Register / Sign In”
Enter your mobile number and verify with OTP
Add your photo ID details if required
Search for vaccination centers in Delhi using your PIN code or district
Select a center, date, and available time slot
Confirm the booking
Carry your photo ID and appointment details to the vaccination center
You can also check availability and book through the Aarogya Setu app or Umang app
For help, contact the Delhi COVID vaccine helpline or the CoWIN support number listed on the portal