market-data-sources-indialisted

# Indian Market Data Sources ## Ground rules before you fetch anything - **Check the terms of use of every source.** NSE, BSE and most commercial providers restrict automated access and redistribution. Public bhavcopy and AMFI files are published for download; undocumented JSON endpoints behind a website are not an API and using them may breach the site's terms. - **Never build a redistribution product on scraped exchange data.** Exchange data is licensed. Personal research is a different matter from a hosted service. - Respect `robots.txt`, rate-limit politely, cache aggressively, and identify your client honestly. - When a source cannot be reached, **say so and name what you tried.** Never fill a gap with a remembered figure. ## The map | You need | Source | Notes | |---|---|---| | Daily OHLC, all listed stocks | NSE and BSE **bhavcopy** (daily CSV/ZIP) | The canonical settlement-grade EOD file | | Adjusted historical prices | Yahoo Finance via `yfinance`, tickers `RELIANCE.NS` / `500325.BO` | Free, convenient; adjustment errors around Indian corporate actions are common — verify against bhavcopy | | Index values and constituents | NSE indices pages; NSE Indices publishes methodology and factsheets | Free-float methodology; check rebalancing dates | | Corporate announcements and filings | NSE / BSE corporate announcements | See `exchange-filings-navigator` | | Shareholding pattern | NSE / BSE quarterly filings | See `shareholding-pattern-analysis` | | Mutual fund NAVs,