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Saturday, March 2, 2024

Understanding the Demat Account Number Format

The digital revolution has rendered paper-based share certificates obsolete, allowing for seamless and efficient trading experiences. Today to invest all you have to do is open a demat account. At its core, these accounts, also called dematerialized accounts, serve as an electronic repository that securely holds an individual’s shares in a digital format. They can safeguard one’s investment assets similar to how a bank account safeguards one’s money. The demat account acts as a custodian of shares, facilitating transactions in a modern and convenient manner. 

In this article, we will learn about the demat account number number and its format. Although one may not realise it as an investor, this account is key to functioning of demat accounts and online trading. 

What is the Meaning of the Demat Account Number?

The demat account number is central to the functioning of a demat account; it is a unique 16-digit identifier that distinguishes each account holder. This numerical code is derived from the combination of the customer/client ID and the DP (Depository Participant) ID. 

The DP ID, which represents the depository participant or stockbroker, forms the first eight digits of the demat account number. These initial digits symbolise the chosen demat service provider, providing a glimpse into the origins of the account.

The remaining eight digits represent the investor’s client ID, also known as the beneficiary ID (BO ID), which is unique to every investor. This combination of the DP ID and the beneficiary ID creates a bespoke identifier, a digital signature that sets the stage for financial transactions within the demat account. 

Demat Account Number Format

However, it is important to note that the structure of the demat account number may vary depending on the depository involved. The two prominent depositories—NSDL (National Securities Depository Limited) and CDSL (Central Depository Services Limited—each have their distinct demat account number formats. 

Under the purview of CDSL, the demat account number is a 16-digit number; both the DP ID and the BO ID assume the form of a 16-digit number. For example, a CDSL demat account number may unfold as 8888666655551111. Here 88886666 is the DP ID, whereas 55551111 is the BO ID.  

Conversely, in the realm of NSDL, the demat account number assumes a 16-digit alpha-numeric composition, commencing with the prominent characters “IN”. So, an illustration of the NSDL demat number would be something like IN88666655551111. Here, the initial eight characters IN886666 make up the depository participant ID, while the remaining digits 55551111 form the BO ID.

What is the difference between the DP ID and the BO ID?

Differentiating between the DP ID and the demat account number is essential to avoid confusion. While the DP ID signifies the stockbroker or depository participant and is encapsulated within the first eight digits of the demat account number, the remaining eight digits represent the BO ID, underscoring the individual’s unique presence within the demat account. This correlation draws parallels with familiar banking codes such as IFSC and MICR, which identify the bank and the client, respectively.

How to Get Your Demat Account Number?

To obtain a demat account number, aspiring investors must first open a demat account with a registered brokerage firm associated with NSDL or CDSL. Through the completion of requisite forms and the submission of necessary documentation, they can open a demat account. In the digital era, many brokerage firms provide convenient online facilities for demat account opening, streamlining the process and empowering individuals to take charge of their financial future.

After submitting the demat account opening form, along with the requisite documents, the potential investor’s credentials will be verified by the NSDL or CDSL. After the verification process, a demat account number is bestowed upon them, marking the commencement of their investment journey. Upon commencement, you will receive a welcoming letter—nowadays an email—from the NSDL or CDSL, which will contain your demat account number. That said, you also later view your demat account number within your demat app by navigating to the profile section.


In conclusion, the demat account number serves as the investors identity in the stock market; it is a key that unlocks a world of opportunities, granting individuals the power to seamlessly trade shares, diversify their portfolios, and participate in the ever-evolving landscape of financial markets. Although one doesn’t need to remember it, they could consider jotting it down somewhere, for the very reason that is their identity in the market, and it may be required while filling some important forms. By understanding the intricate nuances of the demat account number, investors gain a deeper appreciation for the underlying mechanisms that drive their financial transactions.

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