select distinct substring(name,1,1) from stamps ,color_master,np_master where color_master.color_code=stamps.color_code and color_master.color='Red Purple and Buff' and year(stamps.issue_date)=1977 and np_master.np_code=stamps.np_code and np_master.np='P' order by substring(name,1,1)
IndianPost
Color >> Red Purple and Buff >> Issue Date >> year >> 1977 >> Currency >> P >> Alpha >> F >>