पंचायती राज प्रणाली को संस्थागत रूप देने वाला संविधान (73वां संशोधन) अधिनियम, 1992 आधिकारिक तौर पर किस तिथि को लागू हुआ 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?