3D printing is an advanced manufacturing technique that enables rapid manufacturing of complex, intricate geometries, which are often challenging through conventional processing routes. Ceramic structures are often processed using 3D printing due to benefits such as the elimination of mold requirements, design flexibility, and economic viability. In this study, Direct Ink Writing (DIW), a material extrusion-based 3D printing process, is used to fabricate alumina structures. The printable ceramic suspension was prepared using Alumina (57 wt.%), methylcellulose (2.7 wt.%), and distilled water, which was decided through repeated trials. The key rheological properties, such as yield stress, viscosity, and storage/loss modulus of the suspension, were characterized. The printable suspension was 3D printed using DIW, and the printed parts were subjected to drying, debinding, and sintering to obtain dense parts. Microstructural characterization and physical properties of the parts were analyzed to assess the quality of the printed parts. It is shown that the prepared suspension displays shear-thinning behavior, and the printed parts exhibited good extrudability and shape-retention capability. The results show that the sintering temperature of 1500 \(^\circ{\rm C}\) at a holding time of 6 h is a suitable thermal condition to impart density to the final parts. The microstructure shows strong mechanical bonding among the grains at the prescribed sintering profile, having an average grain size of 1.64 µm.