I’ve scanned all over the web, I’m not finding any reliable data vendor or service that provides good data for solid backtesting. Any anyone point me in the right direction pls?
I’m looking to backtest across: Nifty, Bank Nifty and Fin Nifty
What kind of data or format are you looking at?
Try ‘Chart data to Excel’: What are the features available on the new Chart IQ?
Options data for past 5 years
Zerodha does not provide expired options data.
Your best bet would be some API, that too paid ones. Not sure about steak or chartink.