जनसंख्या जनगणना आयोजित करने का प्राथमिक सामाजिक-आर्थिक उद्देश्य क्या 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?