select distinct substring(name,1,1) from stamps ,color_master,np_master where color_master.color_code=stamps.color_code and color_master.color='Blue Grey and Monastral Blue' and stamps.serial_no='0518' and np_master.np_code=stamps.np_code and np_master.np='P' order by substring(name,1,1)
IndianPost
Color >> Blue Grey and Monastral Blue >> Serial Number >> 0518 >> Currency >> P >> Alpha >> D >>