भ्रष्टाचार धारणा सूचकांक (Corruption Perceptions Index) वार्षिक रूप से किस संगठन द्वारा जारी किया जाता 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?