select distinct substring(name,1,1) from stamps ,color_master,np_master where color_master.color_code=stamps.color_code and color_master.color='Brown' and np_master.np_code=stamps.np_code and np_master.np='R' and stamps.serial_no='1406' order by substring(name,1,1)
IndianPost
Color >> Brown >> Currency >> R >> Serial Number >> 1406 >> Alpha >> C >>