Muhammad Farhan Akhtar2025-11-172025-11-172021https://escholar.umt.edu.pk/handle/123456789/10179In actual world connectivity variables have significant part in exploration of the networks. Wiener index is one system for certain applications in network hypothesis and science. This thesis contains WI of many Fuzzy Graph (FG) e.g fuzzy path & cycle are discussed. For the productive procedure of WI of a fuzzy path graph and fuzzy cycle graph theorem is proposed. In this article different theorems are introduced to quickly find wiener index of different type of fuzzy graph with example. Few other results are defined related fuzzy graphs. These all usable are for the most part utilized in software engineering, calculation, variable based math, activities research and so on.enThesis