f the data on gst portal after filling showing different as per BUSY data,then you need to check that maybe after return filled,data from BUSY has been modified or deleted or any ammnedment made on portal.So make sure to upload data after checking accuracy in data and must not to modify data in BUSY after uploading it on portal as it may cuase mismatch while reconciling gst reports.So ensure accuracy in data as by checking also generating gst return from lates release of BUSY as per latest government norms and avoiding any errors or discrepancies.If data not updated in gst reports in BUSY as per entry,After backup of data,in housekeeping option,run update gst summary option partially for particular month