The document discusses the definition and classification of contracts according to Indian law. It defines a contract as a legally binding agreement between two or more parties that creates rights for one or more parties to acts or forbearances from others. Contracts are classified according to their validity, formation, and performance. The key elements required for a contract to be valid include an offer, acceptance, lawful consideration, capacity and consent of parties, a lawful object, agreement not declared void, certainty of terms, and possibility of performance.