The 3 Accounts: Bank, Demat & Trading

To buy shares in India you need three accounts that work as a set. Each one does a single job, and each one is held by a different kind of institution under a different licence. That is not bureaucracy for its own sake — it is what stops any one party from holding your money, your shares, and your instructions at the same time.

The bank account holds your money. The demat account holds the electronic record of the shares you own. The trading account is the channel through which your buy and sell instructions reach the exchange. No single account does all three jobs.

The app on your phone is not an account. It is a screen that talks to all three on your behalf. When the app shows '₹25,000 available' and '12 shares held', those two numbers are coming from two completely different systems.

This matters the day something goes wrong. If your broker's platform is down, your shares are still safe — because they are not sitting with the broker, they are recorded at the depository, and you can check them independently.

You almost certainly already have this one. Your savings account is both the source and the destination of every rupee in your investing journey.

When you buy, money leaves your bank account, moves into your broker's client-funds pool, and settles the trade. When you sell, the proceeds travel back to the same bank account. The link between the two is set up when you open the trading account.

There is one rule beginners are often surprised by: a broker cannot accept money from a third party. The bank account you link must be in your own name. Money sent from a spouse's, parent's, or friend's account is normally rejected and returned, because the exchange requires that funds and holdings belong to the same verified person.

Money moves in through UPI, net banking, NEFT/RTGS, or a direct transfer. Money moves out only as a withdrawal request to the linked bank account — a broker cannot pay you out anywhere else. That one-way street is deliberate and is a large part of why the system is hard to defraud.

'Demat' is short for dematerialised — your shares exist as an electronic entry instead of a printed certificate. Before this system, owning shares meant holding paper that could be lost, torn, forged, or stuck in the post for weeks.

A depository is the central electronic registry that holds those entries. Think of the sub-registrar's office for property: the office does not hold your flat, it holds the authoritative record that says the flat is yours. A depository does exactly that for securities.

India has two depositories, both registered with SEBI — NSDL (National Securities Depository Limited) and CDSL (Central Depository Services (India) Limited). You do not deal with either of them directly. Your broker or bank acts as a Depository Participant (DP), which is the agent licensed to open and service demat accounts on a depository's behalf.

So the chain reads: you → your DP (usually your broker) → the depository (NSDL or CDSL). Your shares are recorded at the depository level. Your DP only services the account. If you ever need to check your holdings without touching your broker's app, you can — through the depository's own app or the Consolidated Account Statement it emails you.

The process also runs in reverse. Rematerialisation lets you convert electronic holdings back into physical certificates, though almost nobody does this now, and physical shares can no longer be transferred in most cases.

The trading account is the action centre. It is the account through which your buy and sell instructions travel to the exchange, and it is the reason a broker exists at all — only a registered trading member of NSE or BSE is allowed to submit an order.

When your trading account is opened, you are assigned a Unique Client Code (UCC) that is registered with the exchange. Every order you ever place carries that code, which is how the exchange knows the trade belongs to you and not to the broker.

The trading account also carries your funds ledger — the running record of money you added, money used for trades, charges deducted, and money withdrawn. A broker is required to keep client money segregated from its own money, and to report client balances to the exchange.

Within 24 hours of a trade, your broker must issue a contract note: a legal document listing every trade, the price, the quantity, and every single charge itemised. Read it at least once. It is the clearest possible view of what a trade truly costs you.

Most brokers today open the trading and demat accounts together — a '2-in-1' account. A bank-owned broker may offer '3-in-1', bundling the bank account too. Bundling only saves paperwork; the three accounts remain legally distinct.

Watching one full cycle makes the whole structure obvious. Let us trace an illustrative purchase of 20 shares at ₹500 each, ignoring charges for a moment.

You place a buy order for 20 shares at ₹500. Your broker blocks ₹10,000 from your funds ledger and sends the order to the exchange under your client code. The exchange matches it against a seller. The trade is done, but you do not own the shares yet — ownership moves only at settlement.

Indian equity settles on a T+1 basis, meaning one working day after the trade. So a trade done on Monday settles on Tuesday, and on Tuesday the depository credits 20 shares to your demat account and you receive an SMS confirming it.

Selling runs the same road in reverse. You sell 20 shares, the exchange matches your order, the shares are debited from your demat at settlement, and the sale proceeds are credited to your broker's funds ledger — from where you can withdraw them to your bank account.

KYC — Know Your Customer — is the identity verification every market account must pass. It is not a formality. It is what makes each holding traceable to one verified person, which is what allows the depository to protect your ownership.

The process today is almost entirely online and often finishes in a single sitting. Understanding what each document proves makes the form far less intimidating.

PAN is the anchor. Your Permanent Account Number is your tax identity, and it must be linked with your Aadhaar. Every demat account you ever open is tied to your PAN, which is how a Consolidated Account Statement can pull all of them together.

Aadhaar handles identity and signature. Aadhaar-based e-sign with an OTP replaces a physical signature on the account opening form. In-Person Verification (IPV) is the step where the broker confirms a live human matches the documents — done as a short video or a live selfie with a code.

Bank proof links the money. A cancelled cheque, a bank statement, or a passbook page showing your name, account number and IFSC. The name must match your PAN, which is why a maiden-name mismatch is one of the most common reasons an application gets stuck.

Income proof is the one that surprises people. For plain equity delivery investing it is normally not asked. For the derivatives (F&O) segment, the broker is required to collect it — because derivatives carry obligations that can exceed the money you put in, and the regulator expects the broker to know you can bear that.

Nomination is your written instruction to the depository naming who should receive your holdings if you are no longer there. It takes a few minutes at account opening. It is also the single most-skipped step in the entire process, and the one that causes the most damage.

SEBI requires every demat and trading account holder either to register a nominee or to sign an explicit declaration opting out. There is no third option of quietly ignoring it. Accounts that do neither can face restrictions, and the exact deadlines and forms have been revised more than once — confirm the current requirement with your DP.

You can name more than one nominee and specify the percentage each should receive, so a holding can be split between, say, a spouse and two children. The maximum number of nominees permitted has been expanded by SEBI over time, so check the current limit rather than assuming.

Here is the nuance that matters. A nominee is a receiver, not automatically the final owner. The nominee is the person the depository is authorised to transfer holdings to; who ultimately inherits is decided by your will or by succession law. Registering a nominee makes the transfer fast; a will decides where it finally belongs. Serious planning uses both.

Now the cost of skipping it. Without a nominee, your family cannot simply produce a death certificate. They must go through transmission with full succession documents. SEBI prescribes a value threshold below which a simplified process applies; above it, a succession certificate, probate of a will, or a legal heir certificate is typically required. That threshold is revised from time to time, so verify the current figure — but the direction never changes: no nominee means courts, lawyers, months, and cost.

The standard demat account is not the only option. Three variants come up often enough that a beginner should recognise them.

A BSDA — Basic Services Demat Account — is a low-cost version designed for small investors. Its main benefit is the annual maintenance charge (AMC): a BSDA pays nothing while the value of holdings stays under a first threshold, a capped amount in a middle band, and standard AMC above that. SEBI sets the slabs and has revised them upward, so confirm the current numbers with your DP rather than relying on an older figure.

The eligibility rules are strict and easy to trip over. A BSDA must be a single-holder account, and you must not be the sole or first holder of any other demat account anywhere. One person, one BSDA. If your holdings later grow past the top slab, the account converts to a regular demat and normal AMC begins.

A joint demat account can have up to three holders. The first holder's PAN drives the tax reporting, so gains are reported against that person regardless of who funded the purchase. Joint accounts cannot be BSDA. On the death of a holder, the holdings normally pass to the surviving holders, which is why the interaction between joint holding and nomination is worth thinking through rather than assuming.

A minor's demat account is opened in the child's name and operated by a guardian until the child turns eighteen, at which point fresh KYC and a signature update are required. What such an account is allowed to do is restricted — it is meant for holding and receiving shares, not for intraday or derivatives activity. Rules differ between brokers and change, so confirm the specifics before opening one.

When you sell shares, they must leave your demat account and reach the exchange in time for settlement. Someone has to authorise that debit. How you give that authorisation is a real choice, and it is worth understanding rather than clicking through.

Historically, brokers asked clients to sign a Power of Attorney (PoA) over the demat account. A PoA is a broad legal instrument, and cases of misuse led SEBI to replace it for this purpose with a narrower document: the DDPI, or Demat Debit and Pledge Instruction.

A DDPI is deliberately limited in scope. It permits the broker to debit securities for delivery obligations on trades you have placed, to pledge securities for margin, to handle mutual fund transactions, and to tender shares into offers such as buybacks and open offers. It is not a general authority over your account.

The alternative is to authorise each sale individually. CDSL calls this TPIN-based eDIS and NSDL has its own electronic authorisation — you receive an OTP and approve that specific sale, that specific quantity, at that moment. Nothing standing is granted to anyone.

Neither choice is right or wrong. It is a trade between convenience and control. A DDPI means your sales go through smoothly and you will not lose an exit because an OTP failed to arrive. Per-sale authorisation means nobody can move a share without a live approval from you, at the cost of an extra step and a genuine risk of a failed sale on a bad network day.

Before you hand your PAN, Aadhaar, and bank details to anyone, confirm for yourself that they are what they claim to be. Every one of these checks is public, free, and takes minutes.

Start with SEBI's own register. SEBI publishes a searchable list of registered intermediaries. A stockbroker holds a registration number that typically begins with 'INZ', and a Depository Participant holds a separate registration in an 'IN-DP' format. Search the name, and confirm the registration number the broker displays matches the register.

Next, check the exchange. NSE and BSE publish member lists on their own websites. A genuine broker appears as a trading member with a member code. This is a second, independent confirmation.

Then look at the complaint record, which most people never think to check. Exchanges publish data on complaints received against their members, and SEBI runs SCORES, the investor grievance redressal system, alongside the SMART ODR portal for dispute resolution. A broker with an unusually heavy complaint load relative to its client base is telling you something before you join.

Distinguish the broker from its Authorised Person. Many people are introduced to the market by a local franchise or 'sub-broker', now called an Authorised Person. An Authorised Person is registered with the exchange under a specific broker — they are not themselves the broker, and your account and your money must be with the broker, never with the individual.

Finally, check for regulatory actions. SEBI and the exchanges publish orders and disciplinary actions. Reading the last couple of years of actions against an intermediary you are considering is a very cheap form of due diligence.

Brokers broadly fall into two service models. An execution-only broker charges a low, usually flat fee per order and gives you a self-service platform with little or no advice. A full-service broker charges more, often as a percentage of turnover, and bundles research, advisory, and a relationship manager.

Neither model is superior. They are priced differently because they sell different things. What matters is matching the model to how you actually intend to invest, and then judging the specific firm on hard criteria rather than on advertising.

This lesson does not rank brokers and does not recommend one. That is deliberate — a research analyst is not a distributor. What follows is the checklist to evaluate any broker for yourself, and where to find each answer.

Cost is the criterion people over-weight. Charges matter, but a platform that freezes on a high-volatility morning can cost you more in one session than a year of the cheapest brokerage saves you. Weigh reliability and support at least as heavily as price.

Accounts do not last forever, and an account you forget about still costs money. Annual maintenance charges keep accruing on an idle demat account whether you use it or not, and unpaid AMC can build into a demand months later.

To close a demat account, bring holdings and balances to nil, then submit the DP's closure form. If you still hold shares, you have two paths: sell them, or transfer them to another demat account. Closure without clearing holdings is not possible.

To move holdings to a different broker, you do not sell and rebuy — that would trigger charges and a taxable event. You obtain a Client Master Report (CMR) from the new DP, which carries the target account's details, then submit a transfer instruction with your existing DP listing each holding by its ISIN. Transfers between accounts of the same person are not sales.

Two protective facilities are worth knowing. You can freeze a demat account or specific holdings so no debit can happen, which is useful if you hold long-term and want no movement possible. And the depository sends you an alert on every debit — treat an unexpected one as an emergency, not as spam.

The habits that keep an account safe are unglamorous and effective. Use two-factor authentication. Never share a password, PIN, TPIN, or OTP with anyone, including someone claiming to be support. Read the monthly Consolidated Account Statement. Review your nomination once a year. And keep sole control of your own credentials, always.

One closing note, and it applies to everything in this module. Markets carry real risk, and prices can fall as easily as they rise. This lesson is education about how the plumbing works, not advice to invest, and nothing here is a recommendation to buy or sell anything.