The microwave sintered NiTiO3 nanoparticles were synthesized by sol-gel method. The synthesized compound is found to be rhombohedral crystal structure and crystallite size of 46 nm from X-ray powder diffraction technique. The metal-oxide Ni-O and Ti-O bands were analyzed by Fourier Transform Infra-Red analysis. The average particle size is found to be 56 nm from High Resolution Scanning Electron Microscope analysis. The activation energy calculated from Arrhenius plot, the value is found to be 0.04 mu eV. The M-r value is found to be 0.22 emu/g. At room temperature NiTiO3 exhibited super-paramagnetic nature. (C) 2018 Elsevier B.V. All rights reserved.