Demo of "Treadle Phonograph" in Hyderabad on May 22,1892 Telegraph Map of India 1856 Inauguration of Wireless Telegraph Between India and England on July 23,1927 Inauguration of India-England Radio Telephone Service on May 1,1933 Governor of Maharashtra inaugurates Radio Photo Sevice between India and England on April 29,1948(on right is photo of VK Krishna Menon as sent on radio)
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