select distinct substring(name,1,1) from stamps ,paper_master,color_master where color_master.color_code=stamps.color_code and color_master.color='Olive green and Grey' and paper_master.paper_code=stamps.paper_code and paper_master.paper='Unwatermarked adhesive stamp paper' order by substring(name,1,1)
IndianPost
Color >> Olive green and Grey >> Paper >> Unwatermarked adhesive stamp paper >> Alpha >> D >>