Thanks to the Almighty God and Savior Jesus Christ. I personally thank my colleagues and my supervisor for her guidance and support in making the work to come out in a successful manner. I also thank my parents for giving their attention and love in completing the project. I also thank Lambert Publishing Corporation Pvt Ltd for enabling my work to be published as a open access book which would be helpful for my fellow juniors too. The work proposed focuses on the Improvement of soil in foundation a major challenge in civil engineering. Structures built on black cotton soil damaged due to high swelling and shrinkage characteristics of the soil with variation of water content. Various techniques are available for stabilization of black cotton soil. This investigation is an attempt to study the effectiveness of Eco Sand and Quartz Powder to control swelling properties of black cotton soil along with an impact of its strength characteristics and investigates the possibility of using Eco Sand and Quartz Powder to control the expansion properties