राष्ट्रीय बायोगैस कार्यक्रम उतर प्रदेश में कब से चलाया जा रहा है ? - How long has the national biogas program been run in Uttar Pradesh? - Rashtriya Bio-Gas Karyakram Utar Pradesh Me Kab Se Chalaya Jaa Raha Hai ? UP GK in hindi, विविध 1983 - 84 question answers in hindi pdf 1984 - 85 questions in hindi, Know About 1982 - 83 UP GK online test UP GK notes in hindi quiz book 1985 - 86