Dematerialization (DEMAT) is the move from physical certificates to electronic book keeping. Actual stock certificates are slowly being removed and retired from circulation in exchange for electronic recording.
perspective.
Dematerialisation is the process of converting physical shares into electronic format. An investor who wants to dematerialise his shares needs to open a demat account with Depository Participant. Investor surrenders his physical shares and in turn gets electronic shares in his demat account.