Some contractual obligations might without the default of either party become incapable of being performed. The reason for this might be different. It might be because of difficulties for performance, or impossibility or frustration of the contract or even financially not recommended performance. Unforeseeable circumstances may also render the undertaken obligations unperformed. The question under this Article is to show how different systems of law tackle these problems. There is no doubt that the rights and duties of the contractual parties would be affected under such situations, many big companies might run into bankruptcy and something should be done to ease the parties relations. The ideology of law makers will certainly affect the responsibilities of the parties, which is dealt with here. More important than this is to provide that every theory which firstly creates equilibrium between the rights and duties of the parties and secondly keeps the previous balances of the parties undertakings at the time of conclusion of the contract or the appearance of an act or in-act by which the obligations are created by the legislature. Contracts should be kept alive as much as possible. The civil liabilities and contractual obligations which meet these requirements should be reinforced and performed for the benefit of the parties to the disputes and the society as a whole.