Adani Ports & Special Economic Zone Ltd on Wednesday announced that it met the Securities and Exchange Board of India's (Sebi's) mandatory 25 per cent public shareholding requirement following its institutional placement program (IPP) issue was fully subscribed.

Via the IPP issue, which got subscribed 2.27 per cent, the company diluted a 3.33 per cent promoter stake. The IPP issue was primarily brokered by Bank of America Merrill Lynch.

Following the IPP issue, the public shareholding in Adani Ports jumped to 25.83 per cent.

A day earlier on Tuesday, capital market regulator Sebi passed ordered against promoters of 105 companies that failed to meet its mandatory 25 per cent public shareholding requirement within the stipulated deadline of June 3.

The regulator had directed all private-sector companies to complete the fixed public shareholding by June 3, but many companies didn't pay heed to the directive despite repeated reminders.

Shares of a total of 33 companies were put under suspension by the stock exchanges, while the matter was under consideration in case of another three companies.

SEBI also warned that it would start taking even harsher disciplinary actions, like opening criminal proceedings and levying monetary penalties, against the erring companies.