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='Buff green and Grey' and stamps.serial_no='0474' order by substring(name,1,1)
IndianPost
Currency >> P >> Color >> Buff green and Grey >> Serial Number >> 0474 >> Alpha >> I >>