लोकतंत्र में सत्ता की साझेदारी class 10th civics chapter 1 Bihar board लोकतंत्र में सत्ता की साझेदारी class 10th civics chapter 1 Bihar board class 10th civics chapter 1 Bihar board loktantra mein satta ki sajhedari question answer class 10th rajnitik vigyan chapter 1 Bihar board loktantra mein satta ki sajhedari question answer