be that under ordinary service parlance, the selection process can be seemed to be continued till the final orders of appointment are issued and only thereupon it can be said that the selection process is completed. However when a candidate is allowed to change the category during the ongoing selection process, the selection process must be seemed to be completed when final results are issued on the basis of select list so prepared. Any other view would bring about uncertainty and fluidity in the selection process. For example, once the results are declared and select list is prepared, if the candidate is allowed to change the category, a person in the select list may have to be removed from the list. This cannot be the intention of the Rule Making Authority.