पंचायती राज को संस्थागत रूप देने वाला 73वां संविधान संशोधन अधिनियम भारत में किस तिथि को लागू हुआ था?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?