The National Institute of Technology, Tiruchirappalli (NITT), formerly the Regional Engineering College, Tiruchirappalli, is a public engineering and technology university located in the city of Tiruchirappalli in India. The institute was founded in 1964 to cater to the country's growing need for technological manpower.Today, it is one of 18 National Institutes of Technology in India and is recognized as an Institute of National Importance. About 3,400 students are enrolled in various undergraduate and postgraduate programs at the institute. NITT has consistently been ranked one of the top 15 engineering colleges in the country.The institute is located on an 800-acre (3.2 km2) campus on the outskirts of Tiruchirappalli. Most students live in residential hostels on campus. There are more than 35 student groups that pursue various activities and hobbies. The institute also organises annual cultural and technical festivals that attract participants from all over the country and abroad.


                SPIE is a non-profit international society for the exchange, collection and dissemination of knowledge in optics, photonics, and imaging engineering. SPIE organizes conferences, courses and exhibitions covering all aspects and applications of optical engineering. SPIE publishes six refereed journals, a member magazine SPIE Professional, the technical news website SPIE Newsroom, as well as conference proceedings and peer-reviewed handbooks, reference books, and tutorials.


                The Optical Society of America (OSA) is a scientific society dedicated to advancing the study of light—optics and photonics—in theory and application, by means of worldwide research, scientific publishing, conferences and exhibitions, partnership with industry, and the education of new generations of scientists. The organization's members reside in over 100 nations and span many disciplines: physicists, biologists, medical researchers, electrical engineers, display component engineers, communications specialists, vision scientists, astronomers, meteorologists, materials scientists, technical specialists in imaging, and others.Commonly known as OSA, the society exemplifies the self-governing, mutual-assistance professional associations that fostered development of science and technology through the 20th century to the present. By 2008, OSA reported 15,100 individuals members. During the year, the society published 41,000 pages of research in its journals and hosted 22,000 attendees at conferences and meetings.