I am hoping zerodha could consider adding isin to the instruments list.
Reasons
1. Ticker symbols can change due to corporate actions (e.g., mergers, rebranding). 2. ISIN is Permanent 3. Standardized Across Exchanges 4. Easier to map external data (e.g. financials for backtesting)
It's seems that zerodha has acknowledged this for a long time but haven't yet integrated it
This is a basic building block for any quant based system. I am a bit surprised it's not yet implemented
Regards