Quasi contracts are obligations imposed by law to prevent unjust enrichment of one party at the expense of another, even though there is no formal agreement or contract between the parties.
These obligations arise not from the consent of the parties but by operation of law, ensuring that fairness and justice are maintained in situations where one party benefits unfairly.
The principle underlying quasi contracts is equity and fairness, which mandates that no person should be allowed to enrich themselves unjustly or at the cost of others without providing compensation.
Examples of quasi contracts include situations like supply of goods to someone who did not request them but accepts them, or payment made by mistake.
Conclusion:
Quasi contracts are based on the principle of equity and fairness, ensuring justice by preventing unjust enrichment.