Genus Cuscuta is a parasitic plant belonging to family Convolvulaceae. The genus consist of nearly about 150 sp. distributed throughout the world. Cucuta reflexaRoxb.is most common species found in India. As the plant is total parasitic, it depends on the host for water and nutrients. For absorption of food and water it produces parasitic roots also known as haustoria. There is scanty information regarding the initiation and gradual growth phases of haustoria in host tissues of C. reflexa. Current paper is related with the study of initiation, penetration and gradual growth of haustoria inside the host tissue byC.reflexa.