The present invention relates to the production of novel latent self-curable skeletally modified imidazole core" based epoxy resins in the form of one-component system useful for the manufacture of prepregs for advanced high performance composites. In the present work skeletally modified imidazole core based phenolic (IBP) and amino (IMA and IDA) derivatives are synthesized using appropriate chemical precursors at specified experimental conditions and their molecular structures are ascertained from different analytical techniques. The skeletally modified imidazole core derivatives with molecularly built-in self-curable chemical moieties namely imidazole core mono amine (IMA), imidazole core bisphenol (IBP) and imidazole core diamine (IDA) were separately reacted with epichlorohydrin under an alkaline condition through a facile process route to obtain corresponding di-, tri and tetra functional epoxies of self-curable in nature. The optimum yield of varying nature of self-curable epoxy resins with di, tri and tetra functional moieties obtained are 85%, 82% and 88% respectively. The shelf-life of di, tri and tetrafunctional epoxies developed is found to be more than 12 weeks. The self-curing behavior of " di-. tri and tetra functional epoxies developed are studied using differential scanning calorimeter and the polymerization temperature (cure temperature) obtained are 198 °C, 170 °C and 204 °C respectively. The present invention offers a number of advantages over the existing methodologies adopted for different types of one pack epoxy resin systems reported as on date, in terms of chemical composition, reaction time, method of reaction, work-up methodology, shelf-life, cure behavior and fabrication methods. The skeletally modified imidazole core based self-curable epoxy resin produced can effectively and efficiently act as latent cure binder for the production of wide range of industrial coatings, adhesives, sealants, encapsulants and prepregs for composites for high performance applications. Hence, the present method of producing of latent self-curable epoxy resin is considered as clean synthetic process route and cutting edge technology in the field of one component latent cure epoxy systems.