select distinct substring(name,1,1) from stamps ,printsize_master,np_master where year(stamps.issue_date)=2000 and month(issue_date)=4 and np_master.np_code=stamps.np_code and np_master.np='R' and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='2.90 x 3.9' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 2000 >> month >> April >> Currency >> R >> Print Size >> 2.90 x 3.9 >> Alpha >> A >>