Background: Reproductive failures due to abortion in buffaloes are a major cause of concern to livestock owners that cause economic losses. Brucellosis (bacterial disease) and infectious bovine rhinotracheitis (viral disease), both infectious diseases in buffaloes are implicated in abortions in India. Methods: The investigated buffalo farm experienced a few cases of abortions in pregnant animals in the late trimester. Blood samples were collected aseptically from individual animals without anticoagulants. After clotting of the blood, extracted serum samples were clarified and tested in Rose Bengal test and indirect enzyme-linked immunosorbent assay for the serological diagnosis of brucellosis and infectious bovine rhinotracheitis. Result: Out of 147 buffalo serum samples tested by using the Rose Bengal test, a total of 27 buffalo serum samples (18.36%) tested positive for the presence of agglutinating antibodies against Brucella species. None of the tested serum samples had detectable levels of antibodies against the infectious bovine rhinotracheitis virus in an indirect enzyme-linked immunosorbent assay.