For regulatory reasons like audit etc., we only accept hard copy of DIS.
Demat account is like bank’s saving account, demat account is used only for depositing shares. We use trading account to buy and sell shares on stock exchanges.
Demat account is not required for trading in futures and options only.
If you are trading in equity segment, it is mandatory to have a DP demat account. If you are trading only in F&O, demat account is not required.