Discharge by Frustration

• A contract is frustrated when there is a change in the circumstances which renders the contract legally or physically impossible of performance  . 
• Section 57 (2) of the Contracts Act 1950 provides that : 

  " A contract to do an act which , after the contract is made , becomes impossible  , or by reason of some event which the promisor could not prevent , unlawful , becomes void when the act becomes impossible or unlawful . "