Prior intimation to stock exchanges required for board meetings addressing changes to non-convertible securities and related meetings. Listed entities with listed non-convertible securities must give prior intimation to the stock exchange at least two working days in advance, excluding the intimation and board meeting dates, when the board will consider alterations to the form, nature, rights or payment dates of such securities, financial results, fund-raising by issuance of non-convertible securities, or any matter affecting holders' rights. The entity must also notify the exchange no later than the commencement of dispatch of notices for shareholder meetings concerning financial results or fund-raising and for meetings of holders relating to their rights, and file disclosures in XBRL format per exchange guidelines.