select distinct substring(name,1,1) from stamps ,color_master,np_master where color_master.color_code=stamps.color_code and color_master.color='Blue' and np_master.np_code=stamps.np_code and np_master.np='P' and stamps.serial_no='1356' order by substring(name,1,1)
IndianPost
Color >> Blue >> Currency >> P >> Serial Number >> 1356 >> Alpha >> S >>