Hi Srinivas,
You need to create custom wage types for showing in payslip and generating the arrears for LWF.
Better you copy the wage types /ae1, /ae2 like you need to create your own with start 9xxx wage types and add in in42 - zn42, in43 - zn43, in44 - zn44 for LWF wage types and the same Copied wage type in Payslip.
Regards,
Venkat Polisetty