HR & Manager information is collected as a guideline for employment verification.
This information help's us reach the POC (Point of Contact) of the company for which the verification is required in a faster manner, therefore, reducing the turn around time (TAT) of the verification. However, we do not completely rely on this information for obtaining a verification.
Also, finding POC details for smaller organizations can be complicated and time-consuming. Therefore, we recommend collecting the HR and Manager information from the candidate.