The document outlines the essential requirements for a valid offer and acceptance in contract law. It discusses how an offer must be definite and intended to create legal relations. It also explains how an offer can lapse or terminate through rejection, revocation, or counteroffer. The document notes acceptance must be absolute and communicated to the offeror according to the prescribed mode and before the offer lapses. It provides details on how communication of offer, acceptance, and revocation are considered complete.