भारत का पहला प्रायोगिक संचार उपग्रह, एप्पल (APPLE) किस सटीक तिथि को प्रक्षेपित किया गया था?

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?