select distinct substring(name,1,1) from stamps ,printsize_master where year(stamps.issue_date)=2001 and month(issue_date)=7 and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='4.06 X 4.82' and stamps.serial_no='2006' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 2001 >> month >> July >> Print Size >> 4.06 X 4.82 >> Serial Number >> 2006 >> Alpha >> C >>