select distinct substring(name,1,1) from stamps ,printsize_master where year(stamps.issue_date)=2002 and month(issue_date)=4 and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='2.90 x 3.9' and stamps.serial_no='2066' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 2002 >> month >> April >> Print Size >> 2.90 x 3.9 >> Serial Number >> 2066 >> Alpha >> I >>