This script displays the equity F&O according to your requirements. No database required as the indices change rapidly and database queries overloads the server. On clicking each of the symbol, the detailed information is displayed to track the derivatives better. Refresh time can be modified, default is 5 minutes. Displays Open Interest, Change in Open Interest, % Change in Open Interest, various instruments and other parameters. Can Indicate popularity based on the threshold and colors. Can handle NSE data. Coded in PHP