New Delhi, October 3 (IANS): The Telecom Regulatory Authority of India (TRAI) on Friday released recommendations for a digital radio broadcast policy for private broadcasters. The guidelines include terms, conditions, and reserve prices for launching digital radio broadcasting services in four “A+” category cities -- Delhi, Mumbai, Kolkata, and Chennai -- and nine “A” cities: Hyderabad, Bengaluru, Ahmedabad, Surat, Pune, Jaipur, Lucknow, Kanpur, and Nagpur. The ministry announced that digital radio services will launch in simulcast mode, mandating new broadcasters to adopt the format while allowing existing FM operators to migrate voluntarily. The Ministry of Information and Broadcasting had sought recommendations from TRAI under Section 11 of the TRAI Act, 1997. In a competitive environment, digital radio broadcasting can provide new opportunities to radio broadcasters as well as multiple listening options and value-added services to the listeners, the release noted.