How does the Department ensure that the applicant's information is accurate?

Question

I need five points with it explanations

Answer 1

Basic velidations are biometric verification, phone number verification via OTP, email varification via the OTP verification.
Next level validation is DOB and other personal information varification which is generally done via any govt validation i.e. AAdhar in India or SSN in USA.
Other information like employment, academic are done via the reference check and done via some third party which makes sure employment verification and Academic Verification.