CDSL (Central Depository Services Limited)

Central Depository Services (India) Limited (CDSL) is a SEBI-registered securities depository established on 12 February 1999 under the Depositories Act, 1996, promoted by the Bombay Stock Exchange (BSE) , and the first listed depository in India (June 2017). The second depository to be set up in the country after NSDL , CDSL holds securities in dematerialised (electronic) form on behalf of investors through a network of Depository Participants (DPs), providing custody, electronic transfer, pledge, and corporate action processing services for equity shares, bonds, government securities, mutual fund units, and other categories of securities. It holds the largest number of demat accounts in India.

CDSL is headquartered at Marathon Futurex, N. M. Joshi Marg, Lower Parel, Mumbai. It is listed on BSE (scrip code 543261, listed in June 2017), making it the first listed depository in India; NSDL followed with a BSE listing on 6 August 2025. CDSL is also listed on NSE (symbol CDSL).

CDSL reported about 18 crore (180 million) beneficial owner (BO) accounts as of 31 March 2026, up from 15.30 crore a year earlier, a base far larger than NSDL ’s by account count and reflecting CDSL’s dominance of the retail investor segment that expanded rapidly from 2020. NSDL, by contrast, holds the larger share of custody value. The Managing Director and CEO is Nehal Vora, who has led CDSL since September 2019 and was reappointed for a five-year term from 18 September 2024.

History

Context: establishing the second depository

When NSDL was founded in 1996, it operated as a monopoly depository with NSE and large financial institutions as its anchor promoters and customers. BSE , which remained a major exchange and the listing venue for thousands of companies, sought to establish a competing depository that would be more closely aligned with its own ecosystem and would provide BSE member-brokers and their clients a depository option not controlled by NSE-linked institutions.

SEBI’s policy position was that competition between depositories would improve service quality and reduce costs to investors, consistent with its broader market liberalisation philosophy. The Depositories Act, 1996 did not restrict the number of SEBI-registered depositories, permitting the establishment of CDSL alongside NSDL.

Founding (1999)

CDSL received a certificate of commencement of business from SEBI and commenced operations in 1999. The founding promoters included BSE, the State Bank of India (SBI), the Bank of India, the Bank of Baroda, the Bank of Maharashtra, and HDFC Bank, among other financial institutions. BSE’s promoter stake reflected the exchange’s strategic interest in providing a competitive alternative to NSDL within its own sphere.

Growth through the broker-DP model

CDSL expanded its DP network aggressively, targeting stockbroker-DPs as a channel to reach retail investors. Because many retail investors open demat accounts through their broker (rather than through a bank), the DP affiliations of major brokers determined which depository received their clients’ accounts. Brokers can affiliate with NSDL, CDSL, or both.

For much of the 2000s, CDSL had fewer institutional clients (large banks, custodians, foreign portfolio investors) than NSDL but grew its retail broker-DP network. The surge in retail investor participation beginning in 2020, driven by the pandemic-era market recovery, zero-commission brokerage, and the growth of digital-first brokers such as Zerodha , Groww , and Angel One , translated into explosive account growth for CDSL, as many of these brokers are CDSL DPs.

IPO and listing (2017)

CDSL conducted an initial public offering in June 2017, listing on both BSE (the exchange it was originally associated with) and NSE . The IPO was subscribed heavily, reflecting investor interest in the capital market infrastructure sector. Post-listing, BSE’s direct shareholding in CDSL declined as required by SEBI’s regulations capping single-shareholder ownership of a depository; BSE eventually reduced its direct holding to comply with the 15 per cent cap, with the balance placed with other institutional and public shareholders.

CDSL’s listing gave it a publicly observable valuation and made it a constituent of mid-cap indices, increasing its visibility in the investment community. As of 2024, CDSL’s market capitalisation made it a mid-to-large-cap stock, reflecting investor expectation of continued growth in its account base and transaction volumes.

Ownership and corporate structure

CDSL’s shareholding following its IPO and subsequent BSE stake dilution includes:

• BSE Limited: Held a founding promoter stake, subsequently reduced under SEBI-mandated ownership cap rules. BSE retains a direct stake below the 15 per cent cap.
• State Bank of India, Bank of India, Bank of Baroda, Bank of Maharashtra, HDFC Bank, Standard Chartered Bank: Founding promoter institutions that have retained varying stakes.
• Public shareholders (post-IPO): Including mutual funds, foreign portfolio investors, and retail shareholders.

The Board of Directors of CDSL includes public interest directors (PIDs) constituting the majority, as required by SEBI’s Market Infrastructure Institution (MII) governance guidelines for recognised depositories.

CDSL operates through two notable subsidiaries:

• CDSL Ventures Limited (CVL): Operates the KYC Registration Agency (KRA) for the securities market. CVL-KRA (also called CVLMF KRA) is one of SEBI’s five registered KRAs; it stores centralised KYC records of investors, allowing a KYC completed once with any SEBI-registered intermediary to be relied upon by other intermediaries without re-documentation.
• CDSL Insurance Repository Limited (CIRL): An insurance repository for holding insurance policies in electronic form, part of the IRDAI’s e-Insurance initiative.

The depository function

CDSL performs the same core depository functions as NSDL :

Dematerialisation

Physical share certificates submitted by investors through their CDSL-DP are forwarded to the company’s registrar and transfer agent (RTA). The RTA verifies authenticity, cancels the physical certificates, and CDSL credits an equivalent electronic balance to the investor’s BO account. Newly issued shares from IPOs, rights issues, and bonus issues are credited directly in electronic form without a paper stage.

Electronic custody

CDSL maintains the definitive record of investor securities holdings in dematerialised form. Each investor’s BO account reflects their holdings by ISIN and quantity. The depository is the registered holder of the securities in the company’s records; the investor is the beneficial owner entitled to dividends, voting rights, and other corporate benefits.

Transfer of securities

Exchange-settled transfers (through NSE or BSE ) are effected by debiting the seller’s demat account and crediting the buyer’s account on the settlement date (T+1 for equities). The clearing corporation (NSCCL for NSE, ICCL for BSE) instructs CDSL to effect the transfer as part of settlement.

Off-market transfers for gifts, inheritance, or private deals are processed through Delivery Instruction Slips (DIS) or CDSL’s electronic eDIS mechanism.

Pledge and re-pledge

CDSL supports pledge creation for collateral purposes, both for loans against shares from banks or NBFCs and for margin pledging in derivative trading. Under the peak margin pledge reform (effective from September 2021 following SEBI’s August 2020 circular), brokers must collect derivative margins from clients via a depository pledge mechanism rather than by transferring securities to a broker pool account. This reform placed CDSL’s pledge infrastructure at the centre of daily margin collection for millions of retail derivative traders.

The re-pledge mechanism allows a broker who has received a client’s pledge to re-pledge the same securities to the clearing corporation (NSCCL or ICCL) as collateral for the broker’s own margin obligation at the clearing corporation level, creating a chain: client pledges to broker, broker re-pledges to clearing corporation.

Corporate actions

CDSL processes corporate actions, dividends, bonus shares, rights entitlements, buyback proceeds, and demerger/merger credits, by updating BO account balances automatically on relevant record dates in coordination with the issuer’s RTA. Dividend entitlements are based on the CDSL BO register as of the record date; payment is credited to the investor’s registered bank account via NACH.

Depository Participants

Investors access CDSL’s services through Depository Participants (DPs). CDSL’s BO account identifier format is a 16-digit numeric code: the first 8 digits identify the DP (DP ID), and the last 8 identify the client within that DP. All CDSL DP IDs are purely numeric (unlike NSDL, which uses an alphanumeric IN-prefixed DP ID). CDSL DP IDs typically begin with “12”.

Prominent CDSL DPs include:

• Zerodha : Zerodha’s demat accounts are held with CDSL (Zerodha’s DP code is 12081600). Zerodha is among the largest DPs by account count.
• Groww : Groww’s demat accounts are CDSL accounts.
• Angel One : Angel One is a CDSL DP for its brokerage clients.
• 5paisa : CDSL DP.
• HDFC Bank, ICICI Bank, Kotak Mahindra Bank: These banks offer both NSDL and CDSL demat account options depending on the product.

The broker-DP model, where a single entity serves as both the broker (for trading) and the DP (for demat services), became the dominant retail model in India. Clients benefit from seamless integration between their trading account and demat account when both are with the same entity. The CAS CDSL service provides investors with their consolidated holdings statement.

Technology and services

Easi and eServices

CDSL’s Easi (Easy Access to Securities Information) portal, accessible at web.cdslindia.com, is CDSL’s investor-facing digital interface. Easi provides:

• BO account statement: holdings, transactions, and pledges.
• Consolidated Account Statement (CAS) request: covering both NSDL and CDSL holdings and all mutual fund folios.
• Nominations, address updates, bank account updates.
• Pledge and unpledge transaction history.

eServices is CDSL’s digital service platform for DPs, allowing DPs to submit account-opening requests, account modification instructions, and bulk processing functions.

CDSL Ventures Limited (CVL-KRA)

CVL-KRA is one of the five SEBI-registered KYC Registration Agencies in India (alongside NDML KRA, CAMS KRA, Karvy KRA, and Aadhaar-linked mechanisms). When an investor completes KYC with any SEBI-registered intermediary (broker, mutual fund, insurance intermediary) and the KYC is uploaded to CVL-KRA, any other SEBI-registered intermediary can rely on that KYC record without re-collecting documents. This centralisation of KYC significantly reduced onboarding friction in the post-2010 period.

eDIS (Electronic Delivery Instruction Slip)

CDSL’s eDIS mechanism allows investors to authorise securities delivery electronically using an OTP sent to the mobile number registered with CDSL, replacing the physical DIS slip for exchange-settled sales. For investors whose demat account is with a CDSL DP different from their broker, TPIN (Transaction PIN) based authorisation provides a comparable OTP-driven electronic consent mechanism. SEBI mandated this mechanism to prevent brokers from delivering securities from client accounts without explicit client consent.

Consolidated Account Statement (CAS)

The CDSL-generated CAS covers all demat accounts in CDSL and NSDL (via the combined CAS process) and all mutual fund folios, sent monthly to the investor’s registered email. The CAS is the standardised consolidated financial statement for the Indian securities holding ecosystem, mandated by SEBI.

Regulatory framework

CDSL is regulated by SEBI under the Depositories Act, 1996, the SEBI Act, 1992, and the SEBI (Depositories and Participants) Regulations, 2018. As a Market Infrastructure Institution (MII) under SEBI’s framework, CDSL is subject to:

• Annual inspection by SEBI: Covering operational processes, IT systems, risk management, and DP oversight.
• System audit: Independent annual technology audit of CDSL’s core depository systems.
• Cybersecurity framework: SEBI’s cybersecurity and cyber resilience framework mandates specific controls, incident reporting timelines, and periodic drills.
• Investor grievance redressal: DPs must resolve complaints within prescribed timelines; SEBI SCORES provides escalation.
• Ownership cap: No single entity may hold more than 15 per cent of CDSL’s equity (subject to SEBI-specific permissions), and the combined holding of brokers in a depository may not exceed 49 per cent.

Peak margin pledge reform (September 2020)

The SEBI circular of 5 August 2020 (SEBI/HO/MRD2/DCAP/CIR/P/2020/127) and related circulars introduced the peak margin framework, requiring brokers to collect margins from clients based on peak intraday exposure rather than end-of-day positions. A companion reform required that client securities used as margin for derivative trading must be pledged in the depository’s system to the broker, and the broker must re-pledge to the clearing corporation, rather than transferring the securities to the broker’s own pool account.

This reform was triggered by several instances of client securities being misused while held in broker pool accounts (the most notable being the Karvy Stock Broking case of 2019, where client securities were pledged for the broker’s own borrowing without client consent). By requiring that securities remain in the client’s demat account at all times, encumbered only by a lien in CDSL’s system, the reform ensured that clients retained beneficial ownership and that the broker had only a pledge lien, not possession.

The practical implementation required CDSL to scale up its pledge-processing infrastructure significantly. Monthly pledge and re-pledge transactions on CDSL now number in the tens of millions, reflecting the widespread use of securities margin by retail derivative traders.

Market share and competitive position

CDSL’s account count exceeded NSDL ’s by a wide margin, driven by the retail investor surge. The combined demat account base across both depositories crossed 21.6 crore in the quarter ended December 2025 (CDSL Q3 FY26 earnings call). CDSL held about 18 crore accounts as of 31 March 2026, up from 15.30 crore a year earlier, against NSDL’s 3.945 crore as of 31 March 2025, leaving CDSL with roughly an 80 per cent share of demat accounts.

However, NSDL continues to hold the larger share of custody value because institutional investors (mutual funds, insurance companies, foreign portfolio investors, pension funds, and corporate treasury portfolios) are predominantly NSDL account holders. A single institutional account holding ₹50,000 crore of equity is more valuable to the depository’s revenue model than millions of retail accounts with small balances, though retail transaction volumes are substantial.

CDSL’s growth in account count translates to revenue through account maintenance charges, transaction processing fees, annual DP fees, and KYC-related services from CDSL Ventures.

Comparison with NSDL

Both depositories offer equivalent regulatory safeguards, both are SEBI-regulated MIIs, and both participate in the joint CAS and inter-depository transfer mechanisms. The choice of depository for a retail investor is typically determined by which broker they use rather than a direct selection of NSDL or CDSL.

CDSL as a publicly listed company

CDSL’s listing on BSE and NSE in June 2017 made it the first listed depository in India. The listing revealed CDSL’s financial profile to public investors: revenue is diversified across annual issuer maintenance charges (AMC from issuers), transaction fees per demat instruction, online data charges, DP fees, KYC fees through CVL, and insurance repository fees through CIRL. Revenue growth is positively correlated with the number of BO accounts and the level of transaction activity in the securities market.

CDSL’s account count grew explosively from approximately 2 crore accounts in 2019 to about 18 crore by 31 March 2026, driven by the retail investor surge. This growth was reflected in the stock’s performance: CDSL became one of the strongest performers in the financial services sector on Indian exchanges during 2020 to 2024, as investors extrapolated continued account growth and transaction revenue increases.

SEBI’s ownership cap (no single entity may hold more than 15 per cent) constrains BSE’s ability to hold a controlling stake, but BSE’s residual holding in CDSL provides it with a financial interest in CDSL’s success, an unusual arrangement in which an exchange holds a significant stake in its own promoted depository, itself listed on that exchange.

CDSL is a constituent of the BSE MidCap and later larger-cap indices, and its stock is frequently cited in market commentary as a proxy for capital market activity in India, similar to how stock exchange stocks globally tend to track financial market volumes.

References

1. Central Depository Services (India) Limited. Annual Reports (various years). CDSL, Mumbai.
2. Depositories Act, 1996 (Act No. 22 of 1996). Government of India.
3. Securities and Exchange Board of India. SEBI (Depositories and Participants) Regulations, 2018. SEBI, Mumbai.
4. SEBI Circular SEBI/HO/MRD2/DCAP/CIR/P/2020/127, Peak margin framework, 5 August 2020.
5. SEBI. Order in the matter of Karvy Stock Broking Limited. November 2019.
6. SEBI. Cybersecurity and Cyber Resilience Framework for Market Infrastructure Institutions. January 2019.
7. CDSL. Easi user documentation and investor services guide. cdslindia.com.
8. CDSL Ventures Limited (CVL-KRA). KRA registration and KYC framework documentation. cvlkra.com.
9. Association of National Numbering Agencies (ANNA). ISIN allocation procedures for India. anna-web.org.