What Is Free Consent, Lawful Object, Writing And Registration Is Important For The Valid Contract?

It is another essential of a valid contract. Consent means that the parties must have agreed upon the same sense. For a valid contract it is necessary that the consent of parties to the contract must be free. According to section 14 consent is free when it is not obtained by coercion, under influence, fraud, misappropriation or mistake. If the consent of either of the parties is not free the agreement cannot become a contract.  A compels B to enter into a contract on the point of pistol. It is not a valid contact as the consent between the parties is not free.

Lawful Object: it is also necessary that agreement should be made for a lawful object. The object for which the agreement has been entered into must not be fraudulent or illegal or immoral or apposed to public policy or must not imply injury to the person or property of another. For an agreement or contract by which the any consideration is against the law the agreement is termed as void.

Writing and registration: according to contract act a contract may be oral or in writing. Although in practice it is always in the interest of the parties that the contract should be made in writing so that it may be convenient to prove in the court.

Free consent from law point of view is the agreement that every  one are free to inter to contract without any kind of force,corruption or mistake.
Essential part in contract.
By samuel shoo
out Tanzania

Two or more people agree upon the same thing in the same sense under section 13of the contract act 1950