Because metal oxides are a varied and interesting class of material with characteristics ranging from metals to semiconductors and insulators, major advancement in the area of material science is largely reliant on their development. Perovskite crystal formations are a kind of oxide material with unique functional characteristics that are needed for further technological advancement. Because synthesis of single-phase BiFeO3 (BFO) material is challenging owing to the high volatility of Bi ions, we have utilised a variety of preparation methods to achieve pure phase multiferroic material in this thesis. Synthesis and characterisation of pure and doped bismuth ferrite thin films and polycrystalline bulk material are the primary emphasis. In the current study, pure and doped BFO bulk and thin film nanomaterial were produced to evaluate the suitability of doping components for the improvement of different physical characteristics. As a function of composition, sintering/annealing temperature, frequency, and magnetic field, the structural/microstructural, dielectric, magnetic, and optical characteristics of nanomaterial are investigated. The purpose of this thesis is to investigate structural, microstructural, electrical, and multiferroic characteristics, as well as their relationships. However, owing to a shortage of instrumentation, the magnetoelectric (ME) measurement could not be performed. The characteristics of the material examined in detail are summarised. The surface morphology of the samples revealed the development of nano-scale samples that were produced by chemical means. The EDX spectra of the produced material show that all samples are free of foreign elements except for the suggested elements, and the samples have anticipated stoichiometry. The samples' dielectric characterisation was carried out across a broad frequency range. All of the changed samples' M-H loops exhibited antiferromagnetics/weak ferromagnetics behaviour at ambient temperature. material can be ascribed to the presence of magnetism in the samples, which eventually move towards the field direction, giving rise to weak ferromagnetism.