Hard magnetic ferrites or Hexa ferrites (AB₁₂O_19, A-Ba, Sr, Ca, Pb) are widely used as permanent magnets, in refrigerator seal gaskets, microphones, and speaker gaskets. They can also be used in small motors for cordless appliances and portable magnetic storage devices. In the present research, Al and Ce doped hexaferrites (AB₁₂O₁₉) were chosen and synthesized by combustion technique using the precursors (Sr(NO₃)₂, Ba(NO₃)₂, Ca(NO₃)₂, Fe(NO₃)₃, Al(NO₃)₃, Ce(NO₃)₃) and fuels (C₆H₈O₇, C₁₂H₂₂O₁₁). The prepared powder was calcined at different temperature (800 °C, 900 °C, 1100 °C) for 12 h. Phase identification was done by using X-Ray Diffraction (XRD) technique by which phases were confirmed and also the morphological behavior was studied by using Scanning Electron Microscopy (SEM). Elemental analysis was done by using Energy Dispersive Spectroscopy. The intrinsic magnetic properties were studied by using Vibrating Sample Magnetometer, and the hexaferrites are found to be affected by partial substitution of Sr and Fe sites by rare earth elements (RE³⁺) and non-magnetic trivalent Al³⁺ ions respectively, and it is same in case of BaFe₁₂O₁₉ and CaFe₁₂O₁₉. The insertion of Ce³⁺ and Al³⁺ into hexagonal lattice enhances the coercivity due to increase in magneto-crystalline anisotropy or grain refinement. Thus, the hexaferrites are doped by Ce and Al to achieve Sr_0.9Ce_0.1Fe₁₀A_l2O₁₉, Ba_0.9Ce_0.1Fe₁₀Al₁₂O19, Ca_0.9Ce_0.1Fe₁₀Al₁₂O₁₉.