भारत के मुख्य भूमि के कितने राज्य समुद्र तटरेखा (Coastline) साझा करते हैं?

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?