sales in gst 3b

manmohan baheti (student) (112 Points)

21 December 2018  
if by mistake sales in gst 3b is shown at high than actual, then how could it be rectified in next month, for example sales in gst 3b is shown at 256336 of Nov month, but actual sale of November month is 233568,now I want to show actual Sales of November month, could it be rectified during December month