Hi Anilkumar Padinjaremadam,
I think it is better to maintain by IT 0014 or 0015, First generate attendance type based on date and Employees wise,
Goto SE38 give below program name and execute, maintain which date is fall under Wednesday :
| RPTABS20 - Attendance/Absence Data: Overview |
| RPTABS50 - Attendance/Absence Data: Calendar View |
| RPTABS60 - Attendance/Absence Data: Multiple Employee View |
| RPTEAB00 - Attendance Check |
Then create one wage type if you would to maintain constant value directly go to IT 0014 and maintain value other wise if you would like to pay based on some of pay components % level you can maintain through T539J table.
Still you have any doubts let me know.
Yours
Mohan