select distinct substring(name,1,1) from stamps ,paper_master,printsize_master,np_master where paper_master.paper_code=stamps.paper_code and paper_master.paper='Unwatermarked paper' and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='2.54 X 2.5' and stamps.serial_no='0537' and np_master.np_code=stamps.np_code and np_master.np='P' order by substring(name,1,1)
IndianPost
Paper >> Unwatermarked paper >> Print Size >> 2.54 X 2.5 >> Serial Number >> 0537 >> Currency >> P >> Alpha >> S >>