Customer specific exemption is projecting

Dear All,

I have created customer specific exemption, Professional Membership exemption

Now when i do test run for Jan (2016). Where in IT15 (amount is 10000) and IT582 (Amount is 10000)

Now exemption is getting projected. for Jan, feb and mar.

How do i stop this projection.

Feb month salary slip. it is only taking 10000 (which is fine)

Regard

KKS