select distinct substring(name,1,1) from stamps ,printsize_master,np_master where year(stamps.issue_date)=1972 and month(issue_date)=5 and np_master.np_code=stamps.np_code and np_master.np='P' and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='3.56 x 2.5' order by substring(name,1,1)
StampsIndia
Issue Date >> year >> 1972 >> month >> May >> Currency >> P >> Print Size >> 3.56 x 2.5 >> Alpha >> E >>