1843 के भारतीय दासता अधिनियम द्वारा निम्नलिखित में से किस प्रथा को अवैध घोषित किया गया 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?