झारखण्ड में मैगनीज किस किस्म की चट्टानों से प्राप्त होता है ? - Manganese is obtained from which type of rocks in Jharkhand? - Jharkhand Me Magneese Kis Kism Ki Chattanon Se Prapt Hota Hai ? Jharkhand Gk in hindi, अर्थव्यवस्था Dhaarwad Kram question answers in hindi pdf Godavan Kram questions in hindi, Know About Archean Kram Jharkhand Gk online test Jharkhand Gk notes in hindi quiz book Inme Se Koi Nahi