Which type of bank account

which type bank account i.e savings account or current account shall be opened for trading in nse futures and options for individual trader.

If current account is opened , and above 3 crore of transactions done in bank account only from debit and credit entries from futures and options.
Does gst department will inquire about the transactions and what reply shall be given , as we do not apply for gst number for tarding in futures and options.