Navigate to https://www.cowin.gov.in/
Click on the button labelled "Register / Sign In"
1. Enter your Mobile Number on the page
2. Click on the button labelled "Get OTP"
1. Enter the 6-digit OTP which has been sent to your mobile number
2. Click on the button labelled "Verify & Proceed"
Click on the button labelled "Show Certificate"
Click on the button labelled "Download" to download a PDF file of Covid-19 Vaccination Certification