PCF1 // The Radio might have lost its relevance in urban centers where mass media has been revolutionized by television and Internet, but the audio media continues to be the most powerful medium of education, information and entertainment as of today. It is quicker, cost- effective, easy in terms of production. Its delivery is easy, as it is also portable, less equipment are required for the user. It may be on Broadcast mode or non- Broadcast. It’s easy in accessibility in every corner of the country comparative to other medium. Audio is much more needed in the developing countries, because of it’s lower cost and especially in Developing countries like India, where there are vast variations in the languages, cast, creed and they also faced the problem of excessive population. Radio/ audio medium has been successfully used for formal or non-formal education in many countries of the world and that in India too. //