select distinct substring(name,1,1) from stamps ,color_master,np_master where np_master.np_code=stamps.np_code and np_master.np='P' and color_master.color_code=stamps.color_code and color_master.color='Brilliant Orange and Raw sienna' and year(stamps.issue_date)=1971 order by substring(name,1,1)
IndianPost
Currency >> P >> Color >> Brilliant Orange and Raw sienna >> Issue Date >> year >> 1971 >> Alpha >> S >>