Ambika Trading Co (atc) is a family owned and started in the year 1967 by late Nagaraja Rao, now the business is managed by son Ramesh and Grand Son Sanjay Nag. When it was started, atc was into control panel accessories, having foresighted vision, Rao later on diversified business to selling industrial automation products mainly required by special purpose machine builders, process industries like pharmacy, chemical, automobile, research institutions, public sectors & defence esteblesments, Rao also had developed various types of mechanical life testing machine to test telephone instruments and other electrical components.