पानी में लोहे की सुई डूब जाती है लेकिन बड़ा जहाज तैरता रहता है, यह किस सिद्धान्त पर आधारित है?

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?