The Cowin app is an open-source end-to-end vaccination platform that is helping countries all across the world organize and run vaccination drives. The Cowin app is scalable, inclusive, and an open platform that ensures equitable vaccination distribution in a transparent manner for everyone.
It has a dynamic architecture and has specially curated portals for citizens, vaccinators, and administrators. It helps citizens to register for vaccinations in a hassle-free manner and helps facilitate vaccine delivery, besides providing vaccination progress with the analytical dashboard.

How to change my registered mobile number in cowin app after first dose?
If you want to change your mobile number in Cowin app, then you can now do it via the cowin.gov.in website. The CoWIN Vaccine Certificate Correction Form is available on the website to change the address, name, phone number, or Aadhar Card number.
You can go to the CoWIN app or the web portal to download the vaccination certificate I or II. This will enable you to rectify mistakes in the name, DOB, Aadhar Card number, mobile number, or address.
You can also check to verify your own CoWIN Vaccine Certificate. With the introduction of this feature, many people have also been spared from getting fake certificates as you can also verify if the vaccine certificate is original or not.
You can download the correction form and then follow the below steps:
- Provide the registered mobile number and enter the OTP that you received in your number.
- Post this, complete the verification and visit the dashboard.
- On the dashboard, click the “Raise an Issue” option and then choose the “Certificate Correction” option from the available choices.
- Further, click “What is the Issue” and check the “Correction in the Certificate” point.
- Then, hit the Continue button and select the mobile number option.
- Now enter the corrections and click on Continue again.
- If there are any other changes, then you can complete that as well and complete your vaccination as the certificate will get updated only after that.
How to change mobile number in cowin registration?
If you see a wrong mobile number in CoWIN app, then you can follow the above steps to change it.
How to change mobile number in cowin vaccine certificate?
You can change the phone number by filling out the Cowin Vaccine Certificate Correction Form from the app or web portal.
Cowin registered mobile number lost Solution
Go to the web portal and fill out the CoWIN Vaccine Certificate Correction Form to change the phone number.
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