An account in which trading of shares is done? 

Solution

Shares and securities are held electronically in a dematerialized (or Demat) account, instead of the investor taking physical possession of certificates. A Demat account is opened by the investor while registering with an investment broker (or sub-broker). The Dematerialized account number is quoted for all transactions to enable electronic settlements of trades to take place. Every shareholder will have a Dematerialized account for the purpose of transacting.