select distinct substring(name,1,1) from stamps ,color_master where year(stamps.issue_date)=1977 and month(issue_date)=3 and color_master.color_code=stamps.color_code and color_master.color='Multicolour' and stamps.serial_no='0841' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 1977 >> month >> March >> Color >> Multicolour >> Serial Number >> 0841 >> Alpha >> A >>