राष्ट्रीय परती भूमि विकास बोर्ड ने परती भूमि को कितने वर्गो में विभाजित किया है ? - Into how many classes has the National Fallow Land Development Board divided the fallow land? - Rashtriya Parti Bhumi Vikash Board Ne Parti Bhumi Ko Kitne vargo Me Vibhajit Kiya Hai ? Rajasthan GK in hindi, Soil of Rajasthan 9 question answers in hindi pdf 4 questions in hindi, Know About 7 Rajasthan GK online test Rajasthan GK notes in hindi quiz book 13