{
  "dataset": "public-reference-index",
  "schema_version": 1,
  "title": "NiftyScanner public reference datasets",
  "description": "Machine-readable index of the static reference datasets published on this site.",
  "publisher": "NiftyScanner",
  "publisher_url": "https://niftyscanner.in",
  "canonical_url": "https://niftyscanner.in/data/index.json",
  "documentation_url": "https://niftyscanner.in/developers/",
  "contains_market_prices": false,
  "terms": "Static reference data mirrored from primary exchange documents by NiftyScanner. Free to read and cite; please cite the exchange circular named on the record as the primary source and verify it before relying on it. Educational reference only — nothing here is investment advice and no exchange-licensed market data is included.",
  "datasets": [
    {
      "dataset": "index-derivative-lot-sizes",
      "title": "NSE and BSE index derivative lot sizes",
      "description": "Lot sizes for Indian index derivatives, each row taken from the primary exchange circular and carrying both the date it was announced and the date it took effect.",
      "url": "https://niftyscanner.in/data/lot-sizes.json",
      "documentation_url": "https://niftyscanner.in/lot-sizes/",
      "record_count": 6,
      "data_version": "2026-09-04"
    },
    {
      "dataset": "nse-market-holidays",
      "title": "NSE Capital Market holidays and special sessions",
      "description": "Exchange holidays, named weekend holidays, published special sessions, scheduled sessions whose timing is not published yet, and settlement-date exceptions.",
      "url": "https://niftyscanner.in/data/market-holidays.json",
      "documentation_url": "https://niftyscanner.in/holidays/",
      "record_count": 18,
      "years_covered": [
        2026
      ],
      "last_verified_on": "2026-06-22"
    }
  ],
  "not_published": [
    {
      "subject": "index and stock expiry calendar",
      "reason": "No verified expiry data exists on this site. Expiry weekday assignments are set by their own circulars and were revised more than once during 2025, so publishing one means proving which circular is in force. Nothing here should be used to infer an expiry date."
    },
    {
      "subject": "single-stock F&O lot sizes",
      "reason": "Roughly 200 symbols on their own revision cycle; not verified against primary documents here, so not published."
    },
    {
      "subject": "prices, quotes, index levels and volumes",
      "reason": "Exchange-licensed market data. Redistribution is separately chargeable, so no price data is published in these datasets."
    }
  ],
  "full_url_inventory": "https://niftyscanner.in/sitemap.xml",
  "curated_page_map": "https://niftyscanner.in/llms.txt"
}