A regular line of promotion (tarik) was established, whereby one advanced from ordinary secretary (Persian: khalife, Turkish: kalfa) in one of the bureaux of the Grand Vizier's secretariat to senior clerk (ser-khalife or baş-kalfa) and eventually to bureau chief (mektubcı).
Sebuah garis promosi reguler (tarik) didirikan, di mana seseorang maju dari sekretaris biasa (Persia: khalife, Turki: kalfa) di salah satu biro sekretariat Grand Wazir ke senior panitera (ser-khalife atau baş-kalfa) dan akhirnya ke kepala biro (mektubcı).