किस नदी पर स्वतंत्र भारत की प्रथम जल विद्युत परियोजना बनाई थी ? - On which river was the first hydroelectric project of independent India built? - Kis Nadi Par Swatantr Bharat Ki Pratham Jal Vidyut Pariyojana Banai Thi ? Jharkhand Gk in hindi, भूगोल Damodar question answers in hindi pdf Ganga questions in hindi, Know About Bhakhada Jharkhand Gk online test Jharkhand Gk notes in hindi quiz book Satluj