Whether the manufacturing unit need to make the GRN for all the material received by him?
Ans: Yes it is mandatory to make the GRN for all the material received by him even it is inter unit transfer.
Can the multi GRN serial number can be maintained in the same time like one serial for material received from other unit and other for any other martial?
Ans: No multi GRN serial number can be maintained, mainly for internal control. You can maintain multi serial number for purchase voucher, viz., Purchase Raw Material Indegenious (PR), Purchase Raw Material Imported (PI), Purchase Stock Transfer (PST), and so on.