A new era of research is being devoted to decipher different roles of lectins, the carbohydrate-binding molecules of plant. Studies carried out in the last two decades demonstrate the processes such as specific capacity of lectins to recognize diverse sugar structures and mediate a variety of cell-cell and host-pathogen interactions, serum-glycoprotein turnover and innate immune responses. They also provide a basis tor a unique mode of classification of proteins in much wider aspects. Furthermore, the chemistry and biology of these proteins have been responsible tor providing greater insight into the understanding of their functions and their role in biological system. The extensive source or information necessitates a simultaneous analysis of all probable members of this group of proteins to develop a broader perspective or the functionalities as well as potential uses of these lectins with special reference to Orchids. This paper is an attempt in this direction.