NISM Series VI (Depository Operations) study materials
NISM Series VI (Depository Operations) study resources

NISM Series VI (Depository Operations) key terms

NISM Series VI (Depository Operations) · Get comfortable with the vocabulary.

Depository

An entity registered with the regulator that holds securities in electronic form on behalf of investors and settles trades by transferring book entries between accounts, rather than moving physical certificates.

Related: Depository Participant, Dematerialisation
Depository Participant (DP)

A registered intermediary that acts as the depository's agent, opening and maintaining investor accounts, accepting instruction slips, and passing client instructions to the depository for execution.

Related: Depository, Client Beneficiary Account
Dematerialisation

The process by which physical share certificates are surrendered to the issuer's registrar and replaced by an equivalent number of electronic holdings credited to the investor's account.

Related: Rematerialisation, Depository
Rematerialisation

The reverse of dematerialisation: an investor requests that electronic holdings be converted back into physical certificates, which the registrar prints and dispatches after debiting the account.

Related: Dematerialisation, Registrar and Transfer Agent
Client Beneficiary Account

The account a DP opens for an individual or corporate investor to hold securities in electronic form; the investor is the beneficial owner while the depository holds legal title in street name.

Related: Depository Participant (DP), Beneficial Owner
Beneficial Owner

The person entitled to the rights and benefits of securities held electronically, such as dividends and voting, even though legal ownership of the securities rests with the depository.

Related: Client Beneficiary Account, Depository
Demat Account

A common shorthand for a client beneficiary account, the electronic equivalent of a share portfolio that records holdings, pledges, locks, and free balances maintained by the depository.

Related: Client Beneficiary Account, Free Balance
Corporate Action

An event initiated by an issuer that affects the securities of all holders, such as a bonus issue, stock split, rights issue, dividend, merger, or redemption, requiring the depository to adjust balances.

Related: Registrar and Transfer Agent, Beneficial Owner
Pledge

A charge created in favour of a lender over securities held in a demat account, which are blocked until the borrower repays; the lender can invoke the pledge on default.

Related: Pledge Invocation, Lock-in
Pledge Invocation

The lender's formal act of claiming pledged securities after default, which moves the blocked quantity from the borrower's account to the lender's account through the depository.

Related: Pledge, Free Balance
Lock-in

A restriction that prevents securities from being transferred or sold for a stated period, typically imposed on promoter holdings, preferential allotments, or shares issued under employee schemes.

Related: Pledge, Free Balance
Free Balance

The quantity of securities in a demat account that is available for transfer, sale, or pledge because it is not blocked by a lock-in, pledge, or pending instruction.

Related: Lock-in, Pledge
Delivery Instruction Slip (DIS)

A written or electronic instruction signed by the account holder directing the DP to debit specified securities from the account and credit them to a named recipient account.

Related: Off-Market Transfer, Depository Participant (DP)
Off-Market Transfer

A transfer of securities between demat accounts that is not matched through a stock exchange trade, executed on the basis of a delivery instruction slip and subject to applicable stamp duty.

Related: Delivery Instruction Slip (DIS), Market Transfer
Market Transfer

A transfer executed through the clearing corporation of a stock exchange, where the seller's pay-in is matched against the buyer's delivery and the depository effects settlement on the exchange's instruction.

Related: Clearing Corporation, Off-Market Transfer
Clearing Corporation

The exchange-affiliated entity that guarantees settlement, nets trades of members, and instructs the depository to debit and credit the securities accounts of clearing members.

Related: Clearing Member, Market Transfer
Clearing Member

A trading member, or a separate entity sponsored by one, that settles trades with the clearing corporation and holds a pool account through which client securities pass at settlement.

Related: Clearing Corporation, Pool Account
Pool Account

An account maintained by a stock broker or clearing member to receive securities from selling clients and deliver them to buying clients, or to hold securities pending settlement.

Related: Clearing Member, Client Beneficiary Account
Registrar and Transfer Agent (RTA)

An issuer-appointed agent that maintains the register of members, processes dematerialisation and rematerialisation requests, and distributes corporate action benefits to depositories and holders.

Related: Dematerialisation, Corporate Action
Transmission

The process of transferring securities held in a deceased holder's demat account to legal heirs or nominees, requiring documents such as a death certificate, succession certificate, or probate.

Related: Nomination, Client Beneficiary Account
Nomination

A facility allowing an account holder to name a person who will receive the securities on the holder's death, reducing documentation and delay at the time of transmission.

Related: Transmission, Client Beneficiary Account
KYC (Know Your Client)

The identity and address verification process a DP must complete before opening an account, including documents, photographs, signatures, and checks against regulatory and sanctions lists.

Related: Client Beneficiary Account, Depository Participant (DP)
In-Person Verification (IPV)

A mandatory step in which DP staff personally verify the identity of the person opening the account, either face to face or through a permitted video-based process, with records retained.

Related: KYC (Know Your Client), Depository Participant (DP)
Unique Client Code (UCC)

A code assigned to each client that links trading and demat activity to one identity, enabling exchanges and depositories to monitor exposures and detect benami or unauthorised accounts.

Related: KYC (Know Your Client), Client Beneficiary Account
Power of Attorney (POA)

A written authorisation enabling a broker or DP to operate a client's demat account for specified purposes, such as executing delivery instructions after trades, within defined limits.

Related: Delivery Instruction Slip (DIS), Depository Participant (DP)
Basic Service Demat Account (BSDA)

A low-cost account category for small investors, offering exemption from annual maintenance charges when the value of holdings stays below the threshold set by the regulator.

Related: Demat Account, Depository Participant (DP)
Annual Maintenance Charges (AMC)

The recurring fee a DP charges for maintaining a demat account, usually collected in advance for the year and subject to regulatory caps for basic service accounts.

Related: Basic Service Demat Account (BSDA), Depository Participant (DP)
Suspension of Account

A freeze imposed by the DP or depository on an account, often after a client request or a regulatory directive, during which debits are stopped but credits may be allowed.

Related: Freeze, Depository Participant (DP)
Freeze

A status blocking specified transactions on an account or on a quantity of securities, commonly used to secure holdings after a dispute or to honour a client's safety request.

Related: Suspension of Account, Lock-in
Settlement

The completion of a trade by transferring securities to the buyer's account and funds to the seller, carried out on a defined cycle through the clearing corporation and depository.

Related: Clearing Corporation, Market Transfer
T+1 Settlement

A settlement cycle in which trades are settled on the next working day after the trade date, requiring sellers to deliver securities and buyers to pay funds within that timeline.

Related: Settlement, Pay-in
Pay-in

The stage of settlement at which selling members deliver securities to the clearing corporation and buying members deliver funds, before the offsetting pay-out is made.

Related: Pay-out, Settlement
Pay-out

The stage of settlement at which the clearing corporation releases securities to buying members and funds to selling members, after which brokers credit their clients' accounts.

Related: Pay-in, Settlement
Shortages

A failure by a selling member to deliver the full quantity of securities due at pay-in, which the clearing corporation closes out or auctions to protect the buying member.

Related: Pay-in, Clearing Corporation
Auction

The mechanism by which a clearing corporation buys in the market the securities a defaulting seller failed to deliver, recovering the cost and penalties from that member.

Related: Shortages, Clearing Corporation
ISIN (International Securities Identification Number)

A unique twelve-character code assigned to each security issue, used by depositories and exchanges to identify the instrument unambiguously across settlement systems.

Related: Corporate Action, Depository
Reconciliation

The periodic matching of a DP's internal records of client holdings against the depository's records to detect and correct errors, omissions, or unauthorised debits.

Related: Depository Participant (DP), Free Balance
Grievance Redressal

The formal complaint-handling process a DP must operate, escalating unresolved investor complaints to the depository and then to the regulator's online complaint platform.

Related: Depository Participant (DP), KYC (Know Your Client)