राजस्थान द्वारा अपना विधेयक पेश करने से पहले भारत के कितने राज्यों ने तंग करने वाले मुकदमेबाजी रोकथाम अधिनियम (Vexatious Litigation Prevention Act) को अधिनियमित किया था?

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?