answers: 1956
context: on different medium wave-band frequencies in each city. Some programs broadcast on Vividh Bharati are: The headquarters of the Regional Deputy Directors General are located in Delhi and Chandigarh (NR), Lucknow and Bhopal (CR), Guwahati (NER), Kolkata (ER), Mumbai and Ahmedabad (WR), Chennai and Bangalore (SR). All frequencies are in kHz, unless otherwise noted. The external services of All India Radio are broadcast in 27 languages to countries outside India via high-power shortwave band broadcasts. Medium wave is also used to reach neighbouring countries. In addition to broadcasts targeted at specific countries by language, there is a General Overseas Service </s> with Radio Ceylon. Television broadcasting began in Delhi in 1959 as part of AIR, but was split off from the radio network as "Doordarshan" on 1 April 1976. FM broadcasting began on 23 July 1977 in Chennai, and expanded during the 1990s. Deccan Radio (Nizam Radio 1932), the first radio station in Hyderabad State (now Hyderabad, India), went live on air on 3 February 1935. It was launched by Mir Osman Ali Khan the 7th Nizam of Hyderabad with a transmitting power of 200 Watts. On 1 April 1950, Deccan Radio was taken over by the Indian Government, and in </s> regional and national network stations. The CDU also produces Chain Plays, half-hour dramas broadcast in succession by a chain of stations. The News Service Division's Social Media Cell was established on 20 May 2013 and is responsible for providing AIR news on new media platforms such as websites, Twitter, Facebook, and SMS. All India Radio All India Radio (AIR), officially known since 1956 as Ākāsha Vāṇī ("Voice from the Sky") is the national public radio broadcaster of India and is a division of Prasar Bharati. It was established in 1930. It is the sister service of Prasar Bharati's Doordarshan, an
question: when was all india radio renamed as akashvani