The enunciation of law, as emerges from the aforesaid cases, is that in case some candidates are appointed on the basis of result of competitive examination and later on it was found that there was some error either in the questions or any answer key, their appointments is not to be set aside if they had worked on the selected post for three years or more, unless there are allegations of fraud, mischief or misrepresentation against the selected candidates. In the present case, the selection and appointments were made as a consequence of the result of the written test declared on 2.5.2010. The test was out-sourced to an independent agency, i.e., Panjab University. Undisputedly the last appointment from the waiting list was made in March, 2011, meaning thereby for the last three years they are working. The appointments on the basis of revised result after correction of the answer keys were made subsequently, hence, the appointment of the candidates, who got merit position in terms of the result declared at the first place cannot be set aside even if they have not got merit position in terms of the revised result declared after correction of the answer keys.