see, they changes the configuration like month wise deduction. if it is changed month wise it will deduct like this only it is sap standard. actually MP state is deduction is once in a year 2500/- and it will deducted in the month of March. if they want 2500/- deduction at a time only once means again change the configuration for MP state. check the table V_TINP3 which region is assigned to the MP and Orissa.
regards,
praneeth kumar