Can a demat account be opened with four holder's names?

Yes, a depository account can be opened in the name of four holders but the account can be operated only for the demateralisation of shares held in the same combination. Once the shares are dematerialised the securities should be transferred and Demat Account should be closed. No shares can be credited by purchase or transferred from any other account. Hence for such accounts, the standing instruction for credits will be 'N' .