From caption of photo in Marconi house magazine, June 1962

OCRd Extract

Many people in New Delhi are finding work in industry and, as a step in M.I.'s expansion programme, power meters, vacuum tube voltmeters, and pH meters are now being produced at the A.I.M.-Marconi, Service and Calibration Centre, New Delhi. * This development will make the wider use of M.I. products possible in India, which at present has severe restrictions on imports

*Associated Instruments Manufacturers (India) Private Limited.