Carbon nanotubes, particularly multi-walled variants, are extensively utilized in various advanced technological applications due to their exceptional mechanical, electrical, and thermal properties. In the field of electronics, they are employed to create highly conductive and durable components such as transistors, sensors, and interconnects. Their high electrical conductivity and nanoscale dimensions make them ideal for enhancing the performance of electronic devices. In materials science, multi-walled carbon nanotubes are incorporated into composites to improve strength, stiffness, and lightweight properties. These composites are used in aerospace, automotive, and construction industries to develop stronger and more efficient materials. In energy storage, they play a crucial role in the development of high-capacity batteries and supercapacitors. Their large surface area and excellent conductivity contribute to improved energy density and faster charge-discharge cycles. In the biomedical field, multi-walled carbon nanotubes are explored for drug delivery systems, biosensors, and tissue engineering. Their ability to functionalize with various biomolecules allows for targeted drug delivery and enhanced diagnostic capabilities. Overall, multi-walled carbon nanotubes are pivotal in advancing technology across multiple industries, offering innovative solutions to complex engineering and scientific challenges.