select distinct substring(name,1,1) from stamps ,color_master,np_master where color_master.color_code=stamps.color_code and color_master.color='Dark Brown and Blue Grey.' and stamps.serial_no='0519' and np_master.np_code=stamps.np_code and np_master.np='P' order by substring(name,1,1)
IndianPost
Color >> Dark Brown and Blue Grey. >> Serial Number >> 0519 >> Currency >> P >> Alpha >> B >>