The present study was carried out to evaluate cassava genotypes for Postharvest Physiological Deterioration (PPD). Tubers from different genotypes were evaluated at 1,2,3,4 and 5 days after harvest for PPD. Fifteen cassava genotypes were evaluated viz., higher the limitation level of HCN was observed in TCMS 4 (376.88 ppm) and the lowest in TCa 12-7 (10.44 ppm) even five days after harvest. This study can be used to understand the physiological mechanisms of PPD in cassava tubers.