Hindus widely regard Vishwakarma as the god of architecture and engineering, and September 16 or 17 every year is celebrated as Vishwakarma Puja — a resolution time for workers and craftsmen to increase productivity and gain divine inspiration for creating novel products. This ritual usually takes place within the factory premises or shop floor, and the otherwise mundane workshops come alive with fiesta. Vishwakarma Puja is also associated with the buoyant custom of flying kites.
To know more
http://en.wikipedia.org/wiki/Vishvakarman
http://hinduism.about.com/od/godsgoddesses/p/vishwakarma.htm