Comprehensive Guide to Accessing Free and Reliable Indian Market Data for Your Financial Tools

In the realm of financial technology development, access to accurate and timely market data is essential. If you’re building tools that require detailed insights into Indian stock and derivatives markets, knowing where to find high-quality data is crucial. Whether you’re after real-time updates or historical records, there are several reputable sources offering comprehensive information—often at no cost.

Essential Indian Market Data You May Need

Before diving into sources, let’s clarify the types of data commonly sought by developers and analysts:

• Option Greeks: Delta, Gamma, Theta, Vega
• Spot Price: Index or Stock Level
• Bid and Ask Prices
• Open Interest & Volume Data
• Historical Open Interest & Implied Volatility
• Intraday OHLC Data (Open, High, Low, Close)
• Historical Futures Prices
• Put-Call Ratio (PCR) & PCR Trends
• FII/DII Foreign and Domestic Investor Activity
• Market-Wide Position Limits (MWPL)
• Options & Futures Rollout Data
• Basis Data & Underlying Events Calendar
• Volatility Metrics: IV Rank, IV Skew, Volatility Surface
• Additional Data: DII/FII daily patterns, Market Events, and more

Sources for Indian Market Data

Since no single platform offers all these datasets seamlessly, you’ll likely need to aggregate data from multiple providers. Here are some highly recommended sources:

1. NSE India (National Stock Exchange)
2. Web Platform & Data Feeds
3. Offers free access to real-time and historical data via their website, including Index prices, Options Data, and Futures
4. APIs: Unofficial APIs via scraping or community-developed wrappers are available

5. Data Formats: CSV, JSON, XML

6. BSE India (Bombay Stock Exchange)

7. Provides historical and live data related to indices and equities

8. Data can sometimes be accessed through manual downloads or APIs shared by the community

9. Quandl (Now Nasdaq Data Link)

10. Offers Indian market datasets, including historical prices, with some data free under their plans
11. APIs support data retrieval in multiple formats

12. Note: Some datasets require a subscription

13. Alpha Vantage & Other Free API Providers

14. While primarily global, some providers may include select Indian market data
15. Useful for