Multi column data Load with period in column

Hi Everyone,

Im trying to load multi-column period data via DLR in Data Management, the requirement is, it shouldn't be full year load but file will contain all the month so basically DLR should be able to load for the months that are selected at Start and End period while running the DLR. But Im facing issue in this if im trying to run DLR Sep-26 to Mar-27(Fiscal year Apr to Mar) then its loading data from Apr column to Sep month, its considering first column in case of any month trigger.

Ive used below import format, also if im using header as 1 then its failing due to period mapping mismatch and if im making my file in format of period mapping then its loading all the month irrespective of start and end period.