According to previously reported experimental findings, InPd3 appears to be a four-fold ccp superstructure (ZrAl3-type), a two-fold ccp superstructure (TiAl3-type), and a disordered structure (AuCu-type) in three different synthetic conditions. In this course of study, I have attempted to understand the stability of these three polymorphs, from electronic structure and chemical bonding analysis of these configurations, it is quite evident that the In-Pd heteroatomic contacts are more optimized in nature for the ZrAl3type, followed by the TiAl3-type and the AuCu type. These bonds gain partial covalent nature by Pd -4d and In 5s/5p orbital mixing and get semi-directional character. It seems that the extent of the same is majorly controlled by reaction time and annealing temperature. For example, the metastable AuCu-type structure mostly resembles the body-centered tetragonal indium, whereas, very distinct crystallographic ordering between the neighboring In and Pd occurs in the other two types, which can be recognized as a significant modification of crystal and electronic structure, compared to the pure metals In and Pd. In terms of bonding, the combination of semi-metallic and semi-covalent character is very unique in inorganic chemistry where intermetallic compounds with distinct crystallographic ordering between neighboring elements play a crucial role. Understanding the fundamentals behind the formation of these compounds is important for new experimental breakthroughs.