how to deposit GST of previous year 18-1 9 which was wrongly mentioned less in 3B

Anil Gupta (33 Points)

21 August 2019  
By mistake I shown less outward sale as well as GST in Feb 19 GST return 3B and also in GST 1.
In GST 1 I amended/ rectify sale.
From which procedure I should deposit GST on sale.