An offeror may attach any terms and conditions to the offer he makes. He may even prescribe the mode of acceptance. The offeree will have to accept all the terms of the offer. There is no contract, unless all the terms of the offer are complied with and accepted in the mode prescribed. As regards mode of acceptance, it must be noted that in case of deviated acceptance, for example, if the offeror asks for sending the acceptance ‘by telegram’ and the offeree sends the acceptance ‘by post’ the offeror may decline to treat that acceptance as valid acceptance provided the gives a notice to that effect to the offeree within a reasonable time after the acceptance is communicated to him. If he does not inform the offeree as to this effect, he is deemed to have accepted the deviated acceptance. (sec. 7)