The First Inaugural Exhibition under the name of  “Electro Techno” was organized in 1985 by the Electrical Engineering Sectional Committee of the IESL on the initiative of its chairman Eng. Joe Warnakulasinghe and its Secretary Eng. R J Gunawardena, and the Event was sponsored by Lanka Electricity Company (Private) Ltd. 

 
During successive years, "Techno Exhibition" has gained its popularity as an ideal platform for the exhibitors to introduce their products and services. This provided the industry players, an excellent opportunity to keep abreast of the current trends, occurring in the engineering industry and new technologies developed. Apart from the industrialists, stalls were made available to the engineering faculties of the Universities, which were the centers of professional excellence. Their exhibits included engineering education, research, industrial collaboration and consultancy services.
 
 
These were the avenues for the budding engineers to get more information. IESL, which conducted the Junior Inventor of the Year contests annually, is given a separate area within the exhibition to enable the first five winners to exhibit their innovations and inventions. The participants at these contests are school children over the age of 14 years from all parts of Sri Lanka.
 
One of the important aspects of Techno exhibition since it to inception, was to help school children and others who may be interested in the engineering profession, to interest in the engineering profession. Invitations were sent to schools to enable school children to visit the exhibition on a day allocated to them. Stalls run by the different engineering sectional committees of IESL were also featured. These were Electrical & Electronics, Civil, Mechanical, Agricultural & Plantations, Communication & Information Technology, Building Services Engineering, wherein exhibits and models, including working models depicting engineering applications were displayed. This definitely cultivated an interest among youngsters who wished to pursue engineering as a carrier. A carrier guidance desk for school leavers, technicians and graduates provided details on how to become a Professional and Chartered Engineer.
 

Following the Techno exhibition is the " Award Ceremony" for best Stalls,it is schedule to be held in October 2010 where stallholders, creative capabilities are appreciated and honoued.