Depository Participant SEBI Registration is an agent or the registered stockbroker of a depository. A depository is an organization/institution which holds the securities of an investor via the DP or Depository Participant & also provide services in relation to the securities and it holds the investors’ securities in the form of shares, debentures, bonds, mutual fund units, etc. in a digital form and it also acts as a link between the companies which issues shares & its shareholders. An individual or a person cannot directly contact the depository. Through the Depository Participant, an individual can open & maintain a Demat Account and they are link between the investors & depository.