Hi Pankaj,
You have to accumulate the (Basic+gradepay+HRA) in xxxx wage type. if you are accumulating all other wage types including mentioned three wage types for other process then it is advised that change PCLS 1 specification as 3 for these three wage types by which you can get the amount of these three wage types in /002 wage type so we can use /002 in place of xxxx. Instead of writing one more PCR to get amount of three wage types.
Hope it is clear.
Regards,
Naidu.