21वें संविधान संशोधन अधिनियम, 1967 द्वारा भारतीय संविधान की आठवीं अनुसूची में निम्नलिखित में से कौन सी भाषा जोड़ी गई थी?

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?