there are many clarification by government for this point, as there are possible difference nin many ways and all have different effect in gstr9 so, its advisable to go threw that clarification and after that ask for particular situation
thank you for you suggestion sir but my query is if in gstr1 you booked your sales as 1,23,000 which is your actual sales and by mistake while filling gstr3b you clicked 1,23,0000 then how to correct this in gstr9