Principle: He, who goes to the court of law to seek justice, must come with clean hands.

Facts: P enters into a contract with S under which S has to construct a house for P and has to complete the same within one year from the date of the contract. This contract includes two very important terms. According to first term if there is price hike of the materials to be used in the construction, then the escalation charges at a particular rate shall be payable by P to S. According to second term if the construction of the house is not completed within the period prescribed for it, then S will have to pay penalty at a particular rate to P. Before the completion of the construction work the workers of S go on strike and strike continues up to three months even after  the expiry of one year. After that period workers return and the construction work again starts. During the last three months period of strike there was a considerable rise in the price of the building material. S claimed escalation cost from P. P did not agree to it. S filed a suit in the court of law either to order the payment of the price of the building material on the basis of escalated price or to allow him to stop the work without incurring any penal liability towards P.