किस राज्य का स्थापना दिवस (बिहार दिवस) हर साल 22 मार्च को मनाया 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?