दामिने इ कोह की कब घोषणा हुई ? - When was Damine e Koh announced? - Damine I Koh Ki Kab Ghoshna Hui ? Jharkhand Gk in hindi, विविध 1823 question answers in hindi pdf 1824 questions in hindi, Know About 1822 Jharkhand Gk online test Jharkhand Gk notes in hindi quiz book 1826