“ We find that it will not be necessary for us to go into the merits to find out as to whether the reasons given by the Education Officer in the affidavit are correct or not. We find that the petitions deserve to be allowed on short ground that by the impugned order, respondent Education Officer has set aside the order passed by the earlier Education Officer. As such, the impugned order revokes the approval granted by the earlier order passed by the predecessor in the office of the Respondent Education Officer. By now, it is settled principle of law that unless the power of review is specifically or by necessary implication provided, the authority cannot review its own order. No doubt, if an order is obtained by exercising fraud, it would stand vitiated. However, it is not the case of the RespondentEducation Officer that petitioners have obtained their initial orders by fraudulent means. If the earlier Education Officer had granted approval to the Petitioner's appointment, may be erroneously, the same cannot be made a ground to recall the same and pass contrary order, unless a case of fraud, misrepresentation or suppression is made out. Particularly, when most of the impugned orders would amount to penalising them for no fault on their part. “