Below are the Nifty and Bank Nifty Weekly Options Trading Levels for 13 Dec. Options are for 19 Dec Weekly Expiry
Bank Nifty 19 Dec Weekly Options for Long Trade for 13 Dec

Pattern, Price and Time: Using Gann Theory in Technical Analysis
Below are the Nifty and Bank Nifty Weekly Options Trading Levels for 13 Dec. Options are for 19 Dec Weekly Expiry
Where to get this levels for trading?How do you arrive at the levels for buy and sell.