Sales of Previous month Did not considered in GSTR 3B

Manjunath K (141 Points)

20 October 2019  
Hi Veryone,

We have made a sale in Dec around 12 Lac.. The same was not considered in GSTR 3B but considered in GSTR 1 Return.

Now my doubt is what about the liability how can we set off.

Do we need to pay th GST for the with interest.

Since we have input credit carry forward every month.

Kindly give me solution.