employees concerned, respondents herein, have admittedly snatched employment in railway service, maybe of a casual nature, by relying upon forged or bogus casual labourer service cards. The unauthenticity of the service cards on the basis of which they got employment is clearly established on record of the departmental enquiry held against the employees concerned. Consequently, it has to be held that the respondents were guilty of misrepresentation and fraud perpetrated on the appellantemployer while getting employed in railway service and had snatched such employment which would not have been made available to them if they were not armed with such bogus and forged labourer service cards. Learned counsel for the respondents submitted that for getting service in railway as casual labourers, it was strictly not necessary for the respondents to rely upon such casual service cards. If that was so there was no occasion for them to produce such bogus certificates/service cards for getting employed in railway service. Therefore, it is too late in the day for the respondents to submit that production of such bogus or forged service cards had not played its role in getting employed in railway service. It was clearly a case of fraud on the appellant-employer. If once such fraud is detected, the appointment orders themselves which were found to be tainted and vitiated by fraud and acts of cheating on the part of employees, were liable to be recalled and were at least voidable at the option of the employer concerned. This is precisely what has happened in the present case. Once the fraud of the respondents in getting such employment was detected, the respondents were proceeded against in departmental enquiries and were called upon to have their say and thereafter have been removed from service. Such orders of removal would amount to recalling of fraudulently obtained erroneous appointment orders which were avoided by the employer-appellant after following the due procedure of law and complying with the principles of natural justice. Therefore, even independently of Rule 3(1)(i) and (iii) of the Rules, such fraudulently obtained appointment orders could be legitimately treated as voidable at the option of the employer and could be recalled by the employer and in such cases merely because the respondent-employees have continued in service for a number of years on the basis of such fraudulently obtained employment orders cannot create any equity in their favour or any estoppel against the employer. In this connection we may usefully refer to a decision of this Court in Distt. Collector & Chairman, Vizianagaram Social Welfare Residential School Society v. M. Tripura Sundari Devi [(1990) 3 SCC 655 : 1990 SCC (L&S) 520 : (1990) 14 ATC 766] . In that case Sawant, J. speaking for this Court held that when an advertisement mentions a particular qualification and an appointment is made in disregard of the same, it is not a matter only between the appointing authority and the concerned appointee. The aggrieved are all those who had similar or even better qualifications than the appointee or appointees but who had not applied for the post because they did not possess the qualifications mentioned in the advertisement. It amounts to a fraud on public to appoint persons with inferior qualifications in