select distinct substring(name,1,1) from stamps ,color_master,np_master where np_master.np_code=stamps.np_code and np_master.np='P' and color_master.color_code=stamps.color_code and color_master.color='Golden Yellow and Oriental Blue' and stamps.serial_no='0660' order by substring(name,1,1)
StampsIndia
Currency >> P >> Color >> Golden Yellow and Oriental Blue >> Serial Number >> 0660 >> Alpha >> S >>