Agreement between the parties - Both the parties should agree to the same thing in the same sense - consensus ad-idem
Consent is said to be free when it is not caused by Coercion, Undue Influence, Fraud, Misrepresentation, Mistake
Coercion involves pressure applied through criminal means
Undue influence - When a person who is able to dominate the will of another, uses his / her position to obtain an undue advantage over the other
Fraud - When a person induces another to act on a false belief that is caused by a representation he or she does not believe to be true. It can arise either from deliberate concealment of facts or through misrepresenting them.
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