THE BASICS
What Is a Depository? — Understanding NSDL & CDSL
A depository is an institution that holds securities (shares, bonds, mutual fund units, government securities) in electronic form on behalf of investors. Think of it as a “bank for shares” — just as a bank holds your money, a depository holds your shares in electronic form in your demat account.
India has two SEBI-registered depositories:
NSDL — National Securities Depository Limited
NSDL full form is National Securities Depository Limited. It was established in 1996 as India's first depository, promoted by the National Stock Exchange (NSE), IDBI Bank, and UTI. NSDL pioneered the concept of dematerialisation in India and was instrumental in moving the Indian capital market from physical share certificates to electronic form.
CDSL — Central Depository Services Limited
CDSL full form is Central Depository Services Limited. It was established in 1999 as the second depository, promoted by the Bombay Stock Exchange (BSE) along with other leading banks. CDSL was created to provide competition and choice in depository services, and has since grown to become the largest depository by number of demat accounts.
Important: Both NSDL and CDSL are regulated by SEBI under the Depositories Act, 1996. They do not interact directly with investors. Instead, they work through intermediaries called Depository Participants (DPs) — which are your brokers and banks through whom you open your demat account.