I changed the base slabs in table V_T7INA7 and V_T7INA9, new slabs for only new joining join after 01.01.2014.
But the issue is, its also changed the salary structure of few old employees not for all employee in IT0008.
When I check IV date in IT0008, its shows the current date, when I enter the old date before 01.01.2014 in 'IV from date' then it shows the old structure.
its happened for only some employees not for all.payroll run on the base of new structure.
How we can get the old structure. 
