The recruitment exam is conducted in multiple shifts to accommodate lakhs of applied candidates. Specific question paper is used in each shift. Candidates appearing in different shifts claim that there is variation in the difficulty level of the question paper. There is a possibility that a large number of candidates may have been selected from the particular shift and very few candidates may have got selected from the other shifts. To solve this problem, the normalization process, percentile method is adopted. These methods are used to equalize the difficulty level of all the innings. The effect of these method is that the marks of the candidates vary, it may increase or decrease depending on the difficulty level of the shift. The objective of this paper is to analyze the effect of these method on the score and merit list of the candidates. This analysis can contribute to the preparation of merit list with greater accuracy and improve the examination system to employ deserving candidates.