BEL was established in 1954 with an intention of being a leader in defence electronics and other chosen fields. The main mission of the company is to serve the national needs through quality, technology and innovation. In the initial 20 years it tried to diversify its products at its Bangalore complex. In 1970s it. not only diversified the products but also set up two units, one at Ghaziabad and the other at Pune. There was a tremendous expansion from mid-80s when six units were established. Its products were diversified. With a sales of Rs.14 million in 1960-61 it has grown to Rs.7,239 million sales in 1990-91