This book is intended mainly to make an understanding about the applications of intuitionistic fuzzy sets. Various operators on intuitionistic fuzzy sets are defined and their properties are also studied with suitable examples. Though no prior knowledge of IFSs is required, the reader is expected to be familiar with the basic notions of fuzzy sets and the operators defined on them.This is only a beginning of the applications of intuitionistic fuzzy logic and it will give further elegance in logical computing.