I need help in filling up a share trading a/c form, I already have demat a/c with HDFC Bank & now opening a trading a/c with a share broker , they have sent me the a/c opening form & have marked spots on the form where i have to sign , problem is they have marked everything , i told them i dont want a demat a/c they have still marked the demat section for me to sign ,In the form there are Cash/F&O/Currency derivatives options for BSE & NSE which i have to choose , should i choose cash only? I will use this a/c for long term investment only , wont trade much .