--- title: "How Indian Stock Markets Work | RupeeCase Learn" description: "A plain-language guide to NSE, BSE, SEBI, T+1 settlement, demat accounts, and equity ownership. By Tanmay Kurtkoti, RupeeCase / QCAlpha." source_url: "https://www.rupeecase.com/learn/path-1/module-1-1-how-indian-stock-markets-work" --- Skip to main content [Learn](/learn)›[Path 1: Market Foundations](/learn/path-1)›Module 1.1 # How Indian Stock Markets Work Before you invest a single rupee, you need to understand the plumbing. NSE, BSE, SEBI, settlement, demat accounts, all of it, in plain language, with no shortcuts. TK Tanmay Kurtkoti Founder & CEO, RupeeCase · QC Alpha ⏱ 14 min read ⟳ Updated 15 Jun 2026 ◆ Beginner ## Why does a stock market exist? Think about Reliance Industries. Jio alone cost over ₹1.5 lakh crore to build. No single bank would lend that. So companies go to millions of ordinary people and say: give us money, and in return we give you a small ownership stake in our business. That exchange, money for ownership, is what a stock market is. When you buy a share of Reliance, TCS, HDFC Bank, or Infosys, you are not lending them money. You become a part-owner. A tiny part, but a real, legal one. That distinction matters more than most people realise. ₹400L Cr+ Total market cap of Indian listed companies (2024), larger than Germany's entire GDP 14%+ Nifty 500 annual compounding over 20 years vs 6 to 7% in FDs, the gap that makes equities matter ## NSE and BSE, India's two main exchanges [NSE India](https://www.nseindia.com)National Stock Exchange nseindia.com · Est. 1992 * Main indexNifty 50 * Equity volume share~90% * Companies listed2,200+ * F&OWorld's largest [BSE India](https://www.bseindia.com)Bombay Stock Exchange bseindia.com · Est. 1875 * Main indexSensex 30 * Asia's oldest149 years * Companies listed5,000+ * LocationDalal St, Mumbai [NSE India](https://www.nseindia.com) [BSE India](https://www.bseindia.com) [SEBI](https://www.sebi.gov.in) [NSDL](https://nsdl.co.in) [CDSL](https://www.cdslindia.com) Most large companies, [RILReliance](https://www.nseindia.com/get-quotes/equity?symbol=RELIANCE) [TCSTCS](https://www.nseindia.com/get-quotes/equity?symbol=TCS) [HDFCBKHDFC Bank](https://www.nseindia.com/get-quotes/equity?symbol=HDFCBANK) [INFYInfosys](https://www.nseindia.com/get-quotes/equity?symbol=INFY), are listed on both. As a retail investor it barely matters which exchange you use; your broker handles it. What matters is the benchmark: for systematic investing that is the Nifty 50 or Nifty 500. When people say "the market is up 1.2% today" they mean the Nifty 50. [NSENSE India](https://www.nseindia.com) works with this data daily. RupeeCase works with NSE data and uses the Nifty 500 as the default investment universe across all its strategies. ## SEBI, the referee [SEBISEBI](https://www.sebi.gov.in) Securities and Exchange Board of India is the regulator that oversees everything. SEBI was given statutory powers in 1992, partly in response to the Harshad Mehta scam which exposed how badly an unregulated market could be manipulated. 1875 **BSE founded** on Dalal Street, Asia's first stock exchange, originally called the Native Share & Stock Brokers Association 1988 **SEBI established** as an advisory body. No enforcement powers yet. 1992 **SEBI given statutory powers** after the Harshad Mehta scam. NSE also founded this year. Markets get their first real regulator. 1994 **NSE goes live** with electronic trading, replacing the shouting and paper-based trading system overnight. 1996 **Dematerialisation begins.** NSDL created. Paper share certificates start becoming history. 2023 **T+1 settlement** fully implemented. India becomes one of the fastest-settling equity markets in the world. * Sets rules for mandatory quarterly financial disclosures, no surprises * Regulates brokers and requires segregated client accounts, your money stays yours * Ensures your demat account holdings are protected even if your broker shuts down * Sets circuit breakers, automatic trading halts when a stock moves too fast [SEBI, Securities and Exchange Board of India](https://www.sebi.gov.in) [NSE India](https://www.nseindia.com) [BSE India](https://www.bseindia.com) ## How a trade settles, T+1 1 You place the order Your broker app validates your available cash in milliseconds and accepts the instruction. 2 Order routes to the exchange Your broker sends the order to NSE's matching engine in under 100ms for most retail orders. 3 Match found, trade confirmed NSE finds a willing seller at the current price. Trade confirmed immediately, shows up in your app. 4 Clearing happens NSE Clearing nets all that day's trades and calculates what each broker owes or is owed. 5 Settlement on T+1 The next trading day, shares arrive in your demat ([NSDLNSDL](https://nsdl.co.in) / [CDSLCDSL](https://www.cdslindia.com)) and cash leaves your account. India moved from T+2 to T+1 in 2023, one of the fastest in the world. YOU Buy order → BROKER Routes order → NSE / BSE Order match → CLEARING Net settlement → DEPOSITORY NSDL / CDSL → YOUR DEMAT Shares arrive Trade day = T | Shares & cash transfer = T+1 (next trading day) Your shares cannot simply disappear. The entire chain is electronic and regulated. The ownership record sits with NSDL or CDSL, not with your broker. Your broker is just a gateway. ## Why T+1 is a big deal for retail Most countries still settle equity at T+2. The US started its T+1 transition in 2024. India was first among major markets, moving the entire equity book to T+1 in January 2023. The shift looks like a small operational change. The investor consequence is large. Capital becomes free a day earlier. That sounds trivial until you scale it. A trader who turns the book once a day at T+2 has every rupee of capital tied up for two extra days on every cycle. At T+1 the same rupee comes back twice as fast. SIP investors and long-term holders feel less of this; active traders and fund managers feel a lot of it because their realised cost of capital improves. Counterparty risk also drops. Every additional day between trade and settlement is a day when something can go wrong with the broker, the clearing member, or the underlying counterparty. Cutting that window in half halves the exposure window. SEBI has indicated the next move toward T+0 settlement (same day) for select segments; that conversation is live, and the infrastructure (NSE, BSE, NSDL, CDSL) has already proven it can handle the speed. ## Demat versus broker, the difference that matters Beginners often confuse the two. A broker is a service that gives you the gateway to place orders. The demat account is the electronic record of share ownership held with a depository participant (DP), which in turn is connected to NSDL or CDSL. They are separate things and the legal weight sits with the depository, not the broker. The day a broker fails, the order gateway stops. But the shares in your demat are still legally yours, recorded by NSDL or CDSL. SEBI rules require demat-based holding precisely because of this separation. The 2020 Karvy case in India was the textbook example, where a broker had pledged client shares without consent. The cleanup was painful but no one's actual demat holdings vanished, because the depository is independent. Always check your CAS (Consolidated Account Statement) sent monthly by NSDL or CDSL; it is the source of truth, not your broker app. ## Your demat account ▼ Who actually holds your shares SEBI · NSDL · CDSL framework 🏗 SEBI, Regulator NSDL National Securities Depository CDSL Central Depository Services 🔒 Your Demat Account This belongs to YOU, not your broker Your Broker (access gateway only) Can be changed anytime, your shares stay put Before 1996, shares were physical paper certificates. Losing them was catastrophic. SEBI mandated dematerialisation, all shares converted to digital form. Your **demat account** is held by either [NSDLNSDL](https://nsdl.co.in) or [CDSLCDSL](https://www.cdslindia.com). Your broker gives you access to it, but the account belongs to you, not your broker. If your broker shuts down tomorrow, your shares are completely safe. ## Who participates? **Promoters 51%**, Founders & controlling shareholders **FII 19%**, Global funds, sovereign wealth **DII 15%**, Mutual funds, insurance, EPFO **Retail 9%**, You. 90M+ demat accounts (2024) **Others 6%**, Corporate holdings, trusts, HNIs ▼ India's retail investor boom Source: SEBI / CDSL / NSDL annual reports 2.8Cr 2019 4.0Cr 2020 7.4Cr 2021 10Cr 2022 11.5Cr 2023 13.5Cr+ 2024 Registered demat accounts (crore), 4.8x growth in 5 years FIIs and DIIs tend to move counter to each other, when FIIs sell (global risk-off), DIIs typically buy. I have watched this dynamic cushion several sharp corrections in Indian markets over the last decade. ## Market hours | Session | Time (IST) | What happens | | --- | --- | --- | | Pre-open | 9:00 to 9:15 AM | Orders collected, opening price discovered via call auction | | Normal trading | 9:15 AM, 3:30 PM | Continuous two-sided trading. This is when prices move. | | Post-close | 3:30 to 4:00 PM | Closing price calculated, volume-weighted average of last 30 min | | After-hours data | After 6:30 PM | EOD data published. RupeeCase factor scores update. Systematic signals run here. | As a systematic investor you do not need to watch the market during trading hours. Signals run on end-of-day data. Rebalancing happens on a schedule, not on intraday reactions. ## What equity ownership actually means [RILReliance](https://www.nseindia.com/get-quotes/equity?symbol=RELIANCE) and [TCSTCS](https://www.nseindia.com/get-quotes/equity?symbol=TCS) compounded at 15%+ annually for decades, patient investors collected all of it. ▼ ₹1,00,000 invested | 20 years Source: NSE historical data Savings account @ 3.5% p.a. ₹2.0L Fixed deposit @ 6.5% p.a. ₹3.5L Nifty 500 index @ 14% p.a. (20yr avg) ₹13.7L ₹1L invested in 2004 · Values approximate · Past returns not indicative of future performance ◆ The numbers that matter ₹1,00,000 invested in **Nifty 500** in 2003 → approximately **₹22,00,000** by 2024 (22x). The same amount in a savings account → roughly **₹3,20,000**. The difference is not luck. It is time in the market, compounding quietly. ## Key terms Glossary, Module 1.1 Market capShare price × shares outstanding. Reliance at ₹2,800 × 1,350 crore shares = ₹37.8 lakh crore market cap. Large capMarket cap above ₹20,000 crore (SEBI definition). More stable, more liquid, more researched. Free floatShares actually available for trading, excludes promoter and locked-in holdings. Index weights use free-float market cap. T+1 settlementShares and cash transfer one trading day after the trade. India moved from T+2 to T+1 in 2023. Circuit breakerSEBI-mandated trading halt if a stock moves ±5%, ±10%, or ±20% in a day. Prevents panic cascades. Demat accountDigital locker for your shares, maintained by NSDL or CDSL. Belongs to you, not your broker. TK A note from the author Why I wrote this I've spent 17 years in systematic and quantitative trading. Most of that time, I worked inside institutions running quant models that most retail investors never had access to. What bothered me was this: the information gap wasn't about intelligence. The retail investors I spoke to were smart. They just didn't have a framework. They were making ₹10L decisions on ₹500 tips from WhatsApp groups, fooled by influencers with fancy charts and zero accountability, while I was sitting in front of systems that took years and crores to build. RupeeCase is my attempt to close that gap. This education hub is the foundation, the mental models and vocabulary you need before you touch a single strategy. No shortcuts, no fluff. Just the actual building blocks, explained the way I wish someone had explained them to me when I was starting out. Everything in these modules is what I use myself. If it's here, it matters. TK Tanmay Kurtkoti Founder & CEO, RupeeCase · 17 years systematic trading · QC Alpha RC **Want to put this into practice?** RupeeCase is the systematic investing terminal built around everything you're learning here, factor scores, strategy backtests, portfolio construction for Indian markets. [Explore the terminal →](https://invest.rupeecase.com) © All content on this page, text, examples, frameworks, data analysis, and infographics, is original work by Tanmay Kurtkoti and QC Alpha Technologies Pvt Ltd. This material is protected under Indian copyright law and international intellectual property conventions. You may read and share individual links freely. Reproduction, republication, adaptation for commercial use, or distribution of substantial portions, in print, digital, or any other format, requires written permission. For licensing, book rights, or institutional use enquiries: tanmay@rupeecase.com #### Sources & further reading * → [NSE India, Market data, Nifty index methodology, T+1 settlement circulars](https://www.nseindia.com) * → [BSE India, Bombay Stock Exchange, Sensex methodology](https://www.bseindia.com) * → [SEBI, T+1 settlement framework, LODR regulations, investor protection](https://www.sebi.gov.in) * → [NSDL, National Securities Depository](https://nsdl.co.in) * → [CDSL, Central Depository Services](https://www.cdslindia.com) ### Quick check, Module 1.1 0 correct · 0 answered ✓ Module complete! Next module unlocked. 🎉 Module 1.1 complete 3 correct. Continue to Module 1.2 when ready. Complete all 5 modules in Path 1 → take the 30-question Path Test → get your certificate. 🎓 Spread the knowledge This course is free. Help someone else learn how Indian markets work, share it with one person who needs this. 📋 Suggested LinkedIn post, copy & paste Just completed Module 1.1 of Tanmay Kurtkoti's free investing course on RupeeCase. Learning how Indian stock markets actually work, NSE, BSE, SEBI, T+1 settlement, demat accounts explained from scratch. Completely free at rupeecase.com/learn Copy text Share on X Post on LinkedIn Copy link Research Lab Qualifier Path 1, Module 1 of 5 done, complete all 5 + path test to unlock [Explore terminal →](https://invest.rupeecase.com) 📍 1.1 Markets→ 1.2 Stock Data→ 1.3 Indices→ 1.4 Financials→ 1.5 Orders & Costs Calculator ### NSE / BSE Market Hours Tracker Indian equity has three distinct windows on a trading day. Each behaves differently for retail orders. Current time (IST 24-hour, hh:mm) Quick check, Module 1.1 ## 3 questions. Get 2 right to mark this module complete. 0 of 3 answered ✓ Module complete. Keep going. 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