In India, you cannot trade in shares and other such securities without a trading and a demat account. The demat account is necessary to hold the shares and other forms of equities. Not only is the Dhanush demat account opening free, but there is also no requirement of maintaining a minimum balance in the account. However, if you wish to purchase shares, then you will need to add funds to your demat cum trading account from your linked bank account or UPI ID.