केन-बेतवा नदी लिंक परियोजना किन दो भारतीय राज्यों से संबंधित एक प्रमुख नदी जोड़ो परियोजना है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?