गंगा के मैदान की पुरानी जलोढ़ मिट्टी को कहा जाता है - The old alluvial soil of the Gangetic plain is called - Ganga Ke Maidan Ki Purani Jalodh Mitti Ko Kahaa Jata Hai Bihar Gk in hindi, Land and Soil Bangar question answers in hindi pdf Khadar questions in hindi, Know About bhabar Bihar Gk online test Bihar Gk notes in hindi quiz book khondolite