"Indisputably, no notice had been given to the appellant. It was contended on behalf of the State Government that there was no requirement in the rule of giving any prior notice before blacklisting any person. In so far as the contention that there is no requirement specifically of giving any notice is concerned, the respondent is right. But it is an implied principle of the rule of law that any order having civil consequence should be passed only after following the principles of natural justice. It has to be realised that blacklisting any person in respect of business ventures has civil consequence for the future business of the person concerned in any event. Even if the rules do not express so, it is an elementary principle of natural justice that parties affected by any order should have right of being heard and making representations against the order. In that view of the matter, the last portion of the order in so far as it directs blacklisting of the appellant in respect of future contracts, cannot be sustained in law. In the premises, that portion of the order directing that the appellant be placed in the blacklist in respect of future contracts under the Collector is set aside. So far as the cancellation of the bid of the appellant is concerned, that is not affected. This order will, however, not prevent the State Government or the appropriate authorities from taking any future steps for blacklisting the appellant if the Government is entitled to do so in accordance with law, ie. giving the appellant due notice and an opportunity of making representation. After hearing the appellant, the State Government will be at liberty to pass any order in accordance with law indicating the reasons therefor. We, however, make it quite clear that we are not expressing any opinion on the correctness or otherwise of the allegations made against the appellant. The appeal is thus disposed of."