The present study evaluated the effect of dietary inclusion of various feed supplements and their combination on the haematological and biochemical parameters. Day-old broiler chicks (n=252) were randomly assigned to seven treatment groups, each with 3 replicates. The first treatment was designated as control (T0) in which no supplement was added to the feed, while in treatments T1; organic mineral mixture (Organomin forte), T2; organic mineral mixture (Vannamin), T3; probiotics (Microguard), T4; enzyme (Brozyme -XPR) and probiotics, T5; emulsifier (Lipigon) were provided through the feed. In the T6 group, 3 percent less energy was given through feed from 1st to 6th weeks of age respectively. TEC, MCHC, and DLC values were significantly increased in the broilers of feed supplemented groups in comparison to control. TLC, PCV and Hb and was significantly increased in the broilers of feed supplemented groups in comparison to control except the T6 group. MCV and MCH values were significantly (P<0.05) decreased in the broilers of supplemented groups in comparison to control. Biochemical estimations showed a significant increase in TSP, albumin, and globulin and AST and ALT significant decrease in supplemented groups.