Payroll Register is a month-wise transaction summary report displaying Payroll vouchers, similar to Display Statistics in the accounting module. Though the register primarily displays Payroll vouchers, you can however add new columns for any other voucher type.
Go to Gateway of Tally > Display > Payroll Reports > Statements of Payroll > Payroll Register
Press F12: Configure button and set the Periodicity to use.
You can drill down to the List of All Payroll Vouchers report for a particular month and then to a specific voucher, if required by pressing Enter.