(f)the expression "ex-officio vendor" means the treasurer for the time being of the treasury at the headquarters of a district, or his agent and the subordinate treasurer of every subordinate treasury at the headquarters of a sub-division or tahsil of a district, and it also includes every person appointed to discharge the functions of a treasurer at any local depot established at the place where there is no treasury and postmasters including sub and branch post-masters and persons appointed by post offices to sell "Revenue" Stamps ;
