how I check my registration status

The procedure depends on the examination, university or admission portal where you registered.

Generally:

Open the concerned admission/examination portal.

Log in using your application number/registered email/mobile number and password.

Go to Application Status/Registration Status.

Check whether the application shows Submitted, Successfully Registered, Under Verification, Deficient or Incomplete.

Download the confirmation page/receipt if available.

If you tell me the name of the exam, college or university, I can give you the exact steps.