Buy from a vendor that provides a free sample month before purchase. Compare their "Adjusted Close" for Infosys or Reliance on the ex-dividend date against the NSE’s official record. If they match, pull the trigger.
Don't start with 20 years of data. Start with 5 years (2019-2024). You’ll capture COVID, the bull run, and the 2022 correction without being overwhelmed by pre-2000 structural breaks. nifty 50 history data
For calculating SIP returns or SWP planning, the free NSE India data (adjusted) is sufficient. However, for algorithmic traders or technical analysts , you must pay for a premium, professionally spliced dataset. The free data is full of survivorship bias and corporate action gaps that will destroy a short-term strategy’s reliability. Buy from a vendor that provides a free
As a swing trader focused on the Indian equity market, having clean, reliable is non-negotiable. I recently purchased a subscription to a premium dataset (covering 2000–2024) and also compared it with free sources like NSE’s archive and Yahoo Finance. Here is my honest review of the utility, accuracy, and pain points of using this data for serious analysis. Don't start with 20 years of data