An herbal formulation for prevention and treatment of Diabetes and associated complications comprising extracts from selected Indian medicinal herbs. The invention has associate formulations for different diabetes related complications, which are individually useful in clinical requirements such as improving renal health and preventing renal diseases, preventing diabetic retinopathy and prevention and treatment for oxidative damage to heart and blood vessels. The invention is versatile and can be processed into extracts/concentrates and further pharmacologically modified to tablets or capsules or granules or syrups or herbal health drink or inhalable herbal medicinal preparations or ocular preparations or transdermal absorbable preparations such as ointments/gels or injectable medicine.