The invention relates to a process for enhancing the resistance to darkening of hot dip galvanized sheet comprising the steps of chromatising the galvanized sheet in a chromating bath solution at 25degreeC-60degreeC having Cr+6 ion of 2.5 to 4.5 gm/I and Cr+3 ion of 2 to 4 gm//I, having PH of 1.65 wherein in...