जनगणना से प्राप्त आंकड़ों का उपयोग मुख्य रूप से किस उद्देश्य के लिए किया 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?