<Tr> <Th> Webcast </Th> <Td> GIR. fm - Delhi, GIR. fm - Kolkata </Td> </Tr> <Tr> <Th> Official website </Th> <Td> All India Radio, www.newsonair.nic.in </Td> </Tr> <P> All India Radio (AIR), officially known since 1956 as Ākāshvāṇī ("Voice from the Sky") is the national public radio broadcaster of India and a division of Prasar Bharati . Established in 1930, it is the sister service of Prasar Bharati's Doordarshan, an Indian national public television broadcaster . Its headquarters are in the Akashvani Bhavan building in New Delhi . Akashvani Bhavan houses the Drama Section, the FM Section, and the National Service, and is also home to the Indian television station Doordarshan Kendra, (Delhi). </P> <P> All India Radio is the largest radio network in the world and one of the largest broadcasting organisations in the world in terms of the number of languages broadcast and the spectrum of socio - economic and cultural diversity it serves; AIR's home service comprises four hundred and twenty stations located across the country, reaching nearly ninety two percent of the country's area and 99.19% of the total population . AIR originates programming in twenty three languages and one hundred and seventy nine dialects . </P>

When was all india radio renamed as akashvani