“14. Action by the State, whether administrative or executive, has to be fair and inconsonance with the statutory provisions and rules. Even if no rules are in force to govern executive action still such action, especially if it could potentially affect the rights of the parties, should be just, fair and transparent. Arbitrariness in State action, even where the rules vest discretion in an authority, has to be impermissible. The exercise of discretion, in line with principles of fairness and good governance, is an implied obligation upon the authorities, when vested with the powers to pass orders of determinative nature. The standard of fairness is also dependent upon certainty in State action, that is, the class of persons, subject to regulation by the Allotment Rules, must be able to reasonably anticipate the order for the action that the State is likely to take in a given situation. Arbitrariness and discrimination have inbuilt elements of uncertainty as the decisions of the State would then defer from person to person and from situation to situation, Even if the determinative factors of the situations in question were identical. This uncertainty must be avoided.”