points out Subbarao, J, "the court may consider inter alia, the nature and design of the statute, and the consequences which would follow from construing it the one way or the other; the impact of the other provisions whereby the necessity of complying with the provisions in question is avoided; the circumstances, namely, that the statute provides for a contingency of the non-compliance with the provisions; the fact that the non-compliance with the provisions is or is not visited by some penalty; the serious or the trivial consequences, that flow there from; and above all, whether the object of the legislation will be defeated or furthered". If object of the enactment will be defeated by holding the same directory, it will be construed as mandatory, whereas if by holding it mandatory, serious general inconvenience will be created to innocent persons without very much furthering the object of enactment, the same will be construed as directory. But all this does not mean that the language used is to be ignored, but only that the prima facie inference of the intention of the Legislature arising from the words used may be displaced by considering the nature of the enactment, its design and the consequences flowing from alternative construction. Thus, the use of the words 'as nearly as may be' in contrast to the words 'at least' will prima facie indicate a directory requirement, negative words a mandatory requirement 'may' a directory requirement and 'shall' a mandatory requirement.