Difference in GSTR 1 and GSTR 3B data

CA.Navin Chandra Thakur (Chartered Accountant) (26 Points)

02 June 2020  
pls let me know the consequences and remedy in following case.

Liability declared in monthly GSTR 3B correctly but liability declared in GSTR 1 quarterly while the firm was required to file GSTR 1 monthly. Taxes have been paid correctly.