निम्नलिखित में से किस वित्तीय प्रलेख को सैद्धांतिक रूप से 'कृत्रिम मुद्रा' (Artificial Currency) या 'पेपर गोल्ड' माना 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?