Form-16 is the TDS certificate that an employer issue to you when TDS is deducted by them. When an employer deducts TDS on salaries, the income tax act requires that a certificate must be issued by the employer, where the details of tax deducted and deposited is certified.
Employee's Provident Fund (EPF) is a retirement benefit scheme thats available to all salaried employees. This fund is maintained and overseen by the Employees Provident Fund Organisation of India (EPFO) and any company with over 20 employees is required by law to register with the EPFO. It's a savings platform that helps employees save a fraction of their salary every month.