Securities and Exchange Board of India is in the process of examining whether registered portfolio managers invest in instruments other than listed securities, an official of the agency said.

"We are looking at other instruments like exchange traded derivatives for investments by portfolio managers," SEBI executive director R K Nair said.

The regulator has laid down various norms for portfolio managers to protect investor's interest.

SEBI is looking at other structured products besides listed securities, Nair said at a seminar on Portfolio Management Services organised by Indian Chamber of Commerce here today.

At present, there are 247 portfolio managers registered with SEBI and total assets under management by these entities stand at Rs 2.72 lakh crore.

SEBI, he added, is also trying to usher in more reforms in the primary and secondary markets to make the capital markets more fair, transparent and inclusive.