Payroll is the process by which employers pay an employee for the work they have completed
Although it seems like mundane task, it involves many aspects including, withholding taxes from each paycheck and making sure accurate funds are paid to the correct government agency.
pf is provident fund, is a part of salary deducted every month and deposited on your behalf and the company pays the same as it is deducted from your account and when you leave the firm you can apply and withdraw the saved amount.
Employee’s state insurance(ESI) is a self financing social security and health insurance scheme for indian workers