PTax deduction & retro

Hi All,

I am facing 2 problems in case of PTax deduction.

1. One person was in ptax state for july. In july actual ptax deducted Rs. 80/-. In Aug he got trasfer from that state to non ptax state with effect from July. Now in Aug payroll run /ZPB is forming in retro result where forperiod = 04.2010 and inperiod = 05.2010. But in Aug actual result (where forperiod = 05.2010 and inperiod = 05.2010) that wage type is not availble so i m getting mis match in Gross-Deduction=Netpay. It is getting added with Netpay. Netpay is 80 rs. more from Gross-Deduction.

2. Is there any PTax exemption for physically handicapped employees?

Please give ur expert comments.

Regards,