No, it is not possible to know the previous employers of an individual simply by having their UAN (Universal Account Number). The UAN is a unique 12-digit number issued by the Employees' Provident Fund Organization (EPFO) to employees contributing to the Employee Provident Fund (EPF) in India. It is used to track the EPF contributions made by the employee and provides various services related to the EPF.
The UAN primarily serves administrative purposes and is not designed to provide information about an employee's work history or previous employers. The UAN is linked to an employee's EPF account, which contains details of the contributions made by the employee and their employer.
If someone needs information about an individual's work history or previous employers, they would need to obtain that information through other means, such as contacting the individual directly or conducting background checks through relevant authorities, with the individual's consent and as per applicable laws and regulations. Additionally, sensitive information like an individual's work history is usually considered private and may be subject to data protection and privacy laws in many jurisdictions.