select distinct substring(name,1,1) from stamps ,color_master,np_master where np_master.np_code=stamps.np_code and np_master.np='A' and color_master.color_code=stamps.color_code and color_master.color='Olive green and Grey' and stamps.serial_no='0240' order by substring(name,1,1)
IndianPost
Currency >> A >> Print >> Color >> Olive green and Grey >> Serial Number >> 0240 >> Alpha >>