This seminar covers a study on the effect of wheel topography changes by laser dressing on the performance of Aluminum oxide wheels in internal traverse grinding of bearing steel parts. As the dressing method and conditions alter the wheel topography, it influences the tribological aspects of wheel-work system resulting in variation of grinding wheel performance. For laser dressing of grinding wheels, a compact laser dressing attachment was developed on a cylindrical grinding machine. The work includes a study of changes occur on wheel topography throughout the grinding process and its effect on tribological aspects of the dressed wheels affecting the finish and form on the ground parts. Confocal laser scanning microscope was used to capture the 3D image data after dressing and after grinding. From these 3D image data, bearing area curves were drawn for various number of grinding passes. These curves indicate the changes in wheel topography during grinding. From these curves, several functional parameters: Reduced peak roughness-Spk, Core roughness-Sk and Valley depth-Svk were determined. The wheel surface is then characterized by using the ratio of Spk/Sk and Svk/Sk as these ratios were representing consistent values. While Spk/Sk indicates the fineness on the dressed wheel surface affecting the finish on the ground parts, ratio Svk/Sk indicates the openness on the wheel surface indicating the extent of loading on the wheel. Power cell was used to measure and monitor the grinding power drawn during the grinding with laser dressed and diamond dressed wheels. It was observed that the power is affected by the dressing method and the conditions of dressing. While the dressing lead of 0.016 mm/rev. resulted in a coarse surface, the lead of 0.032 mm/rev. has resulted in a finer surface on wheel. Fine dressing and coarse dressing are in agreement with the variation of grinding power. While G-ratio for diamond dressed wheels followed a decreasing trend, the same was observed to increase with laser dressed wheel. Further, this work suggests the suitable use of confocal laser scanning microscope imaging apart from online laser dressing of wheels on grinding machines for effective utilization of precision grinding machines. Such initiatives would help to assess the topography during dressing as well as during grinding and enables the operator to decide on the dressing conditions effectively.