Where a condition is imposed for acceptance, the same is fulfilled before acceptance for the submission or occurrences of similar nature. Non-acceptance of a submission. Contract will became void when the circumstances on which the contract is based change weather within or without the reach of the contractors. A contract made forcibly on false grounds or through threat or by using undue influence is not a valid contract. If a contract is forcibly entered into it becomes an invalid contract.
Threat here refers to show intention of torturing or using influence of any kind.
Undue influence here refers to using influence of position. Something which is obviously unreal, deceitfully shown real, here means False grounds. In the following circumstances, a contract becomes unlawful. Such contracts prohibited by Law. To enter into a contract to achieve illegal objectives.