This document defines an offer and lists the essential elements of a valid offer according to Indian contract law. It provides 9 types of offers: 1. Express and implied offers - Express offers are directly communicated while implied offers are inferred from conduct or circumstances. 2. Specific and general offers - Specific offers are made to individuals while general offers are made to the public. 3. Cross offers occur when two parties make identical offers unaware of each other. 4. A counter offer rejects the original offer and amounts to a new offer with modified terms. 5. Standing offers remain open for a period of time like tenders. Positive offers are to do something, while negative offers are to not do something