Introduction: The ideal management of open fractures remains controversial, especially in Gustilo Anderson type IIIA/IIIB/Complex articular fractures.Various studies have been published so far describing the outcome of Ilizarov fixator in management of open fractures, but very few have been published for diaphyseal tibial fractures. In this study we are looking at the role of early Ilizarov External Fixator as definitive management in open diaphyseal fractures of Tibia. Study: We conducted a Prospective observational study of 26 patientsdiaphyseal open fractures of Tibia treated with early Ilizarov External Fixator. Results: Average time for union was 27.3weeks Complications were non-union(11.5%), pin tract infection (30.8%), persistent pain (38.4%), knee stiffness (3.8%), ankle stiffness (26.9%), deformity (3.8%), limb length discrepancy (15.2%), reflex sympathetic dystrophy (15.2%), persistent limp (41.8%). None of the patients had infection at fracture site.Good and excellent ASAMI bone and functional results were seen in 92.3% and 76.9% respectively. Conclusion: Ilizarov is a very minimal invasive tool with very less secondary soft tissue damage and gives good results in managing open shaft fractures of tibia with early patient mobilization and very few complications.