Distinguish between the following: 'Listed securities' and 'permitted securities'.

'Listed securities' and 'permitted securities' The securities of companies, which have signed the Listing Agreement with a stock exchange, are traded as 'Listed Securities' in that exchange. To facilitate the market participants to trade in securities of such companies, which are actively traded at other stock exchanges but are not listed on an another exchange, trading in such securities is facilitated as 'Permitted Securities' provided they meet the relevant norms specified by the stock exchange.