Frequency distribution of the stars in the V, (V − I) diagram of the cluster and field regions. N_S denote the number of stars in a magnitude bin along the cluster sequence while N_F is for the field region. The number of stars in the field regions is corrected for area differences. N_C (difference between the N_S value of cluster and N_F value of field regions) denotes the statistically expected number of cluster members in the corresponding magnitude bin.