इन्दिरा गाँधी नहर (राजस्थान नहर) को किस नदी से मुख्य रूप से जल प्राप्त होता 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?