What is the primary function of a Depository (such as NSDL or CDSL) in the Indian securities market?

[ A ]To hold securities in dematerialized (electronic) form on behalf of investors and facilitate their transfer between demat accounts[ CORRECT ]

[ B ]To act as the stock exchange where securities are actually traded

[ C ]To set benchmark interest rates for government securities

[ D ]To underwrite new public issues on behalf of the issuer

Takeaway

Option A is correct: a Depository holds securities in dematerialized form and facilitates their electronic transfer.

Derivation

A Depository — India has two, NSDL and CDSL — holds investors' securities in electronic (dematerialized) form through Depository Participants (DPs), eliminating the risks of physical share certificates such as forgery, loss, and delayed transfer. When a trade is executed on a stock exchange, the actual change in ownership is settled by the depository debiting the seller's demat account and crediting the buyer's demat account with the corresponding securities. This custodial and settlement function is distinct from the exchange itself, which only provides the trading venue and price-matching mechanism.

Why the others fail

B — To act as the stock exchange where securities are actually traded

Trading takes place on stock exchanges such as NSE and BSE — depositories do not operate trading platforms; they hold and transfer the electronic record of ownership.

C — To set benchmark interest rates for government securities

Interest rate benchmarks and monetary policy are set by the RBI, entirely outside a depository's function of holding securities electronically.

D — To underwrite new public issues on behalf of the issuer

Underwriting is performed by merchant bankers/underwriters who commit to subscribing unsold shares in an issue — this is unrelated to a depository's custodial and settlement role.