Comprehensive Guide to Accessing Indian Market Data: Free and Reliable Resources

In the world of financial analysis and trading, having access to accurate and comprehensive market data is crucial. For those interested in the Indian stock and options markets, acquiring both live and historical data can significantly enhance your tools and insights. While gathering such a wide array of datasets might seem daunting, there are several reputable sources that offer free and reliable information to meet your needs.

Key Data Types You Might Seek:
– Option Greeks (Delta, Gamma, Theta, Vega)
– Spot Prices (Indices and Stocks)
– Bid and Ask Prices
– Open Interest and Volume Data
– Historical Open Interest and Implied Volatility
– Intraday OHLC (Open, High, Low, Close) Data
– Futures Prices (Historical and Current)
– Put-Call Ratios (PCR), IV Ranks, and Skews
– Market-Wide Positions and Activity Data (FII/DII flows, MWPL, Rollout, Basis)
– Events Calendar and Market News
– Volatility Surface and Related Metrics

Sources for Fetching Indian Market Data:
While no single platform offers all these datasets freely, combining multiple reliable sources can help you build a robust data pipeline. Here are some of the most trusted options:

1. NSE India (National Stock Exchange)
2. Website: https://www.nseindia.com
3. Data Offered: Live index and stock prices, historical data, options data, and more.

4. Access Method: Primarily through website downloads, but also via unofficial APIs and scraping techniques. No official API support, so scraping or third-party libraries are common.

5. BSE India (Bombay Stock Exchange)

6. Website: https://www.bseindia.com
7. Data Offered: Market data, historical prices, derivatives data.

8. Access Method: Similar to NSE, data can be obtained via downloads, scraping, or third-party APIs.

9. Alpha Vantage

10. Website: https://www.alphavantage.co/
11. Data Offered: Stock, forex, crypto data, and some options data.
12. Access Method: REST API; free plan available with limited requests per minute.

13. Note: May have limited Indian market coverage; always verify.

14. Quandl

15. Website: https://www.quandl.com/
16. Data Offered: Extensive datasets including economic, financial, and commodity data.
17. Access Method: API