Total knee and total hip arthroplasty surgery make up a significant proportion of elective orthopaedic surgery in our hospital. The blood transfusion services (BTS) are very important for the successful outcome of these surgeries. The present study was undertaken to monitor the Maximum Blood Order Schedule (MSBOS) and cross match transfusion ratio (C:T ratio) in 349 patients of TKR & THR in our hospital. Majority of the patients with pre-operative haemoglobin of more than 13 g/dL in both the categories (TKR and THR) did not receive any transfusion. C:T ratio of THR (1.3:1) was better compared to TKR (1.44:1). The MSBOS of 2 units of red cells for TKR is appropriate while for THR it should be 3 units of red cells for unilateral THR and 4 units of red cells for bilateral THR especially for patients with pre-operative haemoglobin less than 11 g/dL.