select distinct substring(name,1,1) from stamps ,paper_master,np_master where np_master.np_code=stamps.np_code and np_master.np='P' and paper_master.paper_code=stamps.paper_code and paper_master.paper='Watermarked paper' and stamps.serial_no='0981' order by substring(name,1,1)
IndianPost
Currency >> P >> Paper >> Watermarked paper >> Serial Number >> 0981 >> Alpha >> S >>