The IEI was established on September 13, 1920, in Kolkata (then Calcutta), India. Sir Thomas R. J. Ward, a British engineer, was the founding president. Its primary objective was to promote and advance the engineering profession in India. The institution focused on fostering engineering education, providing a platform for engineers to exchange knowledge, and promoting technological advancements across various engineering disciplines.

IEI expanded its reach and influence. It established numerous state and local centers across India, creating a network of engineers and professionals from diverse engineering fields. This expansion allowed for broader participation and representation of engineers from different regions and backgrounds.

IEI plays a pivotal role in advancing engineering education, setting standards, organizing seminars, workshops, and conferences, and providing a forum for engineers to collaborate and share their expertise. It also works towards enhancing the skills and knowledge of engineers through various certification programs and continuing education initiatives.

While primarily based in India, IEI has established collaborations and partnerships with various international engineering organizations and institutions worldwide, contributing to the exchange of ideas, knowledge, and expertise on a global scale. IEI has played a significant role in shaping the engineering landscape in India, contributing to the growth and development of the profession while fostering a community of engineers committed to advancing technology for the betterment of society.