निम्नलिखित में से किस रक्त समूह (ब्लड ग्रुप) को सार्वभौमिक दाता (यूनिवर्सल डोनर) 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?