select distinct substring(name,1,1) from stamps ,color_master,np_master where color_master.color_code=stamps.color_code and color_master.color='Yellow Green' and stamps.serial_no='1960' and np_master.np_code=stamps.np_code and np_master.np='R' order by substring(name,1,1)
IndianPost
Color >> Yellow Green >> Serial Number >> 1960 >> Currency >> R >> Alpha >> R >>