The document discusses representation of interior services in AutoCAD. It includes electrical layouts such as lights, fans and switchboards. Plumbing and sanitation services such as storm water pipes, waste water pipes and toilet fixtures. Automated services like doors, windows, lighting, AC control and services. The document shows how to use AutoCAD for drafting floor plans, generating construction drawings, and laying out plumbing, electrical, HVAC and fire sprinkler systems. Symbols for lighting, plumbing, doors, air conditioning and fire sprinklers are presented. Contact details are provided at the end.