10. In a Province in which any seats are to be filled by representatives of backward areas or backward tribes, representatives of commerce, industry, mining and planting, representatives of landholders, representatives of universities or representatives of labour, persons to fill those seats, and in Bihar the person to fill the Indian Christian seat, shall be chosen in such manner as may be prescribed :
Provided that in a Province in which any seats are to be filled by representatives of backward areas or backward tribes some or all of those seats may, if it is so prescribed, be treated in the prescribed manner as additional general seats to be reserved for representatives of such areas or tribes.