Fraud, misrepresentation and mistakes are the factors which doesn't allow the person entering into the contract to have a free consent. As a result, the resulting contract becomes altogether void or voidable in hands of that person. It means he can enforce or discharge such contract at his discretion.

To summarise:

(a) Fraud: Fraud exists when a false representation has been made knowingly with an intention to deceive the other party, or to induce him to enter a contract. Contract in the case is voidable.

(b) Misrepresentation: Means a misstatement of a material fact made believing it to be true, without an intent to deceive the other party. Contract will be voidable in this case.

(c) Mistake: When both the parties are at a mistake to a matter of fact to the agreement, the agreement is altogether void.