select distinct substring(name,1,1) from stamps where year(stamps.issue_date)=1998 and month(issue_date)=12 and dayofmonth(stamps.issue_date)=6 and stamps.serial_no='1821' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 1998 >> month >> December >> day >> 6 >> Serial Number >> 1821 >> Alpha >> C >>