Introduction: Platelets are routinely isolated from whole blood and stored in plasma for 5 days. The platelets undergo various storage changes starting from collection, processing to storage and the underlying conditions within the patients which may affect the therapeutic benefit to the recipient. Study aimed to assess the quality of platelets in platelet rich plasma and platelet concentrate and to evaluate the effects of storage on platelets in platelet rich plasma and platelet concentrate. Material and methods:The study was carried out in the after obtaining approval from the Institutional Ethical Committee. The study period was six months. The samples were collected from platelet rich plasma and platelet concentrate bags under sterile conditions. Their quality was assessed using the parameters such as swirling, volume of the platelet concentrate, platelet count, WBC count and pH on day 0, day 3 and day 5 of storage.Results: A total of 64 samples were evaluated and of these 95% have fullfilled all 5 parameters of quality control with a score 5 and 5% had score 4. Thus in our study majority of the prepared units were of the desired quality. All the parameters were assessed and the results obtained on both the units were well above the values of recommended norms. Conclusion:The quality of platelet concentrates were maintained well within the usual 5 days thus an extension of platelet storage time is recommended.