आकाशवाणी भवन दिल्ली से दूरदर्शन का पहला प्रसारण कब किया था ? - When was the first telecast of Doordarshan from Akashvani Bhawan Delhi? - Akashwani Bhawan Delhi Se Doordarshan Ka Pehla Prasarann Kab Kiya Tha ? Delhi Gk in hindi, General Studies 12 May , 1945 Ko question answers in hindi pdf 5 July , 1948 Ko questions in hindi, Know About 15 September , 1959 Ko Delhi Gk online test Delhi Gk notes in hindi quiz book 25 August , 1942 Ko