This document discusses free consent in contracts. It defines free consent as consent that is not caused by coercion, undue influence, misrepresentation, or mistake. It outlines situations that invalidate consent, including coercion (using unlawful threats), undue influence (exploiting a power imbalance), fraud (intentional misrepresentation), and mistake. For each situation, it provides definitions, essential elements, examples, and the legal effect of invalidating consent. It also discusses differences between coercion and undue influence, as well as fraud and innocent misrepresentation. Overall, the document comprehensively covers the key aspects of free and valid consent as it relates to forming enforceable contracts under Indian law.