Condition precedent

An event or state of affairs that is required before something else will occur."When I die I will go to heaven." My death is a condition precedent to my going to heaven (although it is also possible in this example for me to go to heaven on the occurrence of other conditions precedent: it is not stated that I will go to heaven only if I die).In contract law, a condition precedent is a provision of contract that suspends the coming into effect of a contract or a term of the contract unless or until a certain event takes place.
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A contractual condition that suspends the coming into effect of a contract unless or until a certain event takes place. - (read more on Condition precedent)
  

Eng: condition precedent
Urdu: شرط ما قبل ۔ ایسی شرط جو معاہدہ یا کام کی انجام دہی سے پہلے پوری کی جائے ۔