Can two unions at a time submit two separate charters of demands to the management of the same company? We heard that at one pharmaceutical company, two unions have submitted separate charters of demands. A union has submitted cod with a reasonable hike, whereas B union has submitted cod with a very high hike. The management wishes to negotiate with a union, as their demand is quite reasonable. Will it be valid? Can someone share any case laws or an article related to this about how the management can proceed, which is legal?