select distinct substring(name,1,1) from stamps ,paper_master,color_master where paper_master.paper_code=stamps.paper_code and paper_master.paper='Unwatermarked Gummed coated stamp paper' and color_master.color_code=stamps.color_code and color_master.color='Olive Green' order by substring(name,1,1)
IndianPost
Paper >> Unwatermarked Gummed coated stamp paper >> Color >> Olive Green >> Alpha >> K >>