Refund under zero rated supply

Vikasanand Gupta (180 Points)

31 July 2020  
1. a taxpayer has rightly declared the zero rated supply in GSTR-3B but in GSTR-1, they have wrongly declared zero rated supply as with payment of duty as they have to declared the same in without payment of duty head.

how could they rectify the same and can department will accept the said refund and sanctioned it.
moreover, the said refund pertains to marcy 2018, and may be sanctioned in the light of notification no 35/2020 GST dated 03.04.2020 as amended vide notification no. 55/2020 dated 27.06.2020.

pls clarify it