---
license: cc-by-nc-4.0
language:
- en
tags:
- finance
- options
- india
- nifty
- banknifty
- sensex
pretty_name: India Index & Options 1-minute OHLC
---

# India Index & Options - 1-minute OHLC

1-minute OHLCV(+OI) bars for NSE/BSE index spot and option chains: **NIFTY, BANKNIFTY, SENSEX** (~2021-2026).
Powers the open-source TradeMarkk backtester (https://thetrademarkk.com).

**Educational use only. Provided as-is, no warranty. Verify against official exchange data before relying on it.**

## Structure
- `index/{SYMBOL}.parquet` - 1-min spot OHLC per index.
- `options/{SYMBOL}/{EXPIRY}.parquet` - 1-min OHLC per option contract (with `strike`, `option_type`, `expiry` columns). *(uploaded in a later step)*

## Schema
`timestamp` (tz-aware IST), `open`, `high`, `low`, `close`, `volume`, `open_interest`, `trading_day`, `symbol` (+ `strike`, `option_type`, `expiry` for options).

## Notes
Option coverage is partial: illiquid/far strikes are often sparse or absent.