The wet chemical auto–combustion technique was used to synthesize Barium Zirconate ceramic having the general formula BaZrO₃. Many strategies have been carried out to regulate the functional properties of the perovskite structured sample which was calcinated at 800℃ for 9 hours. Fourier transform IR spectroscopy, X – ray diffractometer, Scanning Electron Microscope (SEM) - EDAX, LCR meter and UV – Visible spectroscopy was employed to study about the structural, morphological, optical and electrical properties of the prepared cubic phase barium zirconate sample. The average value of the crystallite size was determined using data derived from XRD and was found to be 6.46nm by using Debye – Scherer formula. Lattice constant, crystallinity, unit cell volume, tolerance factor and x – ray density was also calculated. SEM - EDAX confirmed the elemental composition of the product and verified that they contained only the major constituents (Ba, Zr and O).The vibrational modes of the prepared sample was investigated using FTIR in the wavelength ranging from 400 - 4000Cm^-1. Energy bandgap was observed using Tauc’s plot, where a graph was prepared for photon energy(hυ) and (αhυ)². The powder sample was blended with PVA and made into pellet of 13mm diameter using a pelletizer to explore the dielectric parameters like dielectric constant, loss factor, etc, in the frequency ranging 100Hz to 4MHz at room temperature. With high dielectric constant and low dielectric loss factor, barium zirconate ceramics stands as an excellent material for several microwave applications.