E-commerce online sales

sir am selling lassi in the monthof january total rs 100,000.
in that 50k sales made through online balance shop sales.
as per new amendment only for shop sales we have to pay gst for online sales instead of us e commerce operator will file gst.
my question is?
while filing my returns GSTR 1 of jan month, 50k sales( shop sales)I will mention in b2c column, where I have to show online sales ,us their any particular column for that??..
I have to shown or wt?? if I didn't show my gst sales will not match with my boa sales
please give me suggestion