Dear Varun,
I don't think so it's related to V_T510S WT group.
Have a look T52D7 (Assign Wage Types to Wage Type Groups). WT groups are related to country and WTs assign to WTs groups.
When you define your wage types you should set your country in OH11.
By the way, have a look here http://wiki.sdn.sap.com/wiki/display/ERPHCM/Unable+to+copy+wage+types+between+countries+without+SAP+wage+type+models
Regards,
Omid