In recent years, much work has been done on surfaces to improve their properties. One such surface improvement process involves coating the surfaces with various materials through deposition processes. These surface deposition techniques are essential nowadays; they enhance or impart additional properties to the base material. Their application consists of different manufactured parts that can be used directly in cutting tool industries, small workplaces, electronics, etc. Physical Vapor Deposition is one such way to develop a coating on a substrate to improve its properties. The present work is a comparative study of the indigenously developed titanium nitride coatings produced by cathodic arc evaporation onto different substrates with different surface conditions. Cathodic arc evaporation is a type of physical vapor deposition technique in which a high current generates an arc between the anode and cathode which is the target material to accomplish the coating. The surface texturing of the tungsten carbide substrate is first done. Then, deposition is done in a nitrogen gas environment with a titanium target so that, through such a reactive sputtering process, the desired titanium nitride is deposited over the substrate. X-ray diffraction technique first confirms the development of titanium nitride, which is then checked for nanoindentation, and then the comparison between textured and non-textured cutting tool inserts is analyzed based on the end milling of Nimonic 90 alloy, a difficult-to-machine material. The cutting environment is kept as nanofluid-based minimum quantity lubrication, and the nanoparticles used are of alumina, the solvent is DI water, and a suitable surfactant is used to increase the stability of the nanofluid. The cutting force, cutting temperature, surface roughness, and tool wear are studied and compared with an uncoated tool, and it is seen that the coated tool reduces the cutting forces, surface roughness, and tool wear.