Shares, scrips, stocks, bonds debentures, debenture stock or other marketable securities of similar nature of any incorporated company or body corporate including underlying shares of ADRs and GDRs. Units of mutual funds, rights under collective investment schemes and venture capital funds, commercial paper, certificate of deposit, securitised debt, money market instruments and unlisted securities are the securities available for dematerialisation. The investor should note that he can convert physical form of securities into book entry form in NSDL depository system only if the company which has issued the securities has entered into an agreement with NSDL to offer demat facility.