A thin film rolled like a cylinder or 3D tube is the carbon nanotube, whereas a thin single layer 2D film is the graphene. This is the main difference between carbon nanotubes and graphene. You can read about Nanotechnology in India – Origins, Uses, Developments in the given link.
- Nano Mission – UPSC Nanotechnology Notes for Science & Technology
- Science & Technology Notes For UPSC – General Science Notes