Cluster bean or guar is grown worldwide principally for its green pods being used as vegetable & fodder and seeds as the source of gum for food, paper & textile Industry. Although variety "Sharada" of this crop is high yielding and disease resistant,it needs genetic improvement through mutation breeding to boost up its productivity. At present there is no book in the market giving details about the mutagenic sensitivity of this variety. This book provides the investigatory information about the use of physical & chemical mutagens in alone and combination treatments, especially related to germination percentage, seedling height, chromosomal aberrations, chlorophyll chimeras, morphological variants, mutagenic efficiency and mutagenic effectiveness. This indispensable source book would be helpful for those who are working for the genetic improvement of "Sharada" cluster bean,mainly the Research Scholars in Agriculture, ,Horticulture, Genetics & Plant Breeding, Progressive Farmers and all others involved in the area of mutation breeding.The results mentioned here are the conclusions made by the authors which may vary in different environments.