select distinct substring(name,1,1) from stamps ,np_master where year(stamps.issue_date)=1957 and np_master.np_code=stamps.np_code and np_master.np='P' and stamps.serial_no='0392' order by substring(name,1,1)
StampsIndia
Issue Date >> year >> 1957 >> Currency >> P >> Serial Number >> 0392 >> Alpha >> C >>