you can download option price at each second, and place order in multiple account using excel with target adn stoploss. If you want to trade from excel using zerodha API refer "tradepyxl" python package given in link. This package is to trade in NIFTY and BANKNIFTY weekly options in multiple account. https://drive.google.com/drive/folders/15WrmN9owjNrYpmwlmsz9vVUJWZRuCH8X?usp=sharing
Zerodha provides the data?
Yeah,you can fetch live data for specific instruments using Websocket streaming. You can refer documentation here.
https://drive.google.com/drive/folders/15WrmN9owjNrYpmwlmsz9vVUJWZRuCH8X?usp=sharing