New Delhi: To ensure a stronger surveillance system for any wrongdoing in the marketplace, stock exchanges may soon be asked to maintain a database of Permanent Account Number (PAN) of all promoters of the companies listed on their platforms. A proposal for asking the stock exchanges to maintain a database of all promoter PANs for listed companies is currently under consideration of capital market regulator Sebi’s Integrated Surveillance Department (ISD), a senior official told PTI. The Department undertakes surveillance meetings with stock exchanges, clearing corporations on a regular intervals for various policy initiatives and other market intermediaries are also involved whenever required. Besides helping in implementation of enforcement action against promoters and other entities, the regulator feels, PAN can also be useful in ensuring a better surveillance mechanism and therefore a database of PANs of all promoters of listed companies can be of great help.