Reg: Turnover difference

dear sir,
as per my financial statements
taxable turnover is 100 & exempted (bank interest, agricultural income, sale of land) is 50..

total turnover : 150/- as per financial statements..

but only on 100/- I had paid tax and shown as turnover under GST..

IN GSTR 9C.. when iam doing turnover reconciliation IAM getting unreconciled difference of 50/-..

can I mention reason as it is exempted in GSTR 9C???

please need in urgent...