select distinct substring(name,1,1) from stamps ,printsize_master,np_master where year(stamps.issue_date)=1988 and month(issue_date)=6 and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='4.48 X 3.3' and np_master.np_code=stamps.np_code and np_master.np='P' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 1988 >> month >> June >> Print Size >> 4.48 X 3.3 >> Currency >> P >> Alpha >> K >>