किस राजपूत शासक ने 'ज़िच मुहम्मद शाही' नामक खगोलीय सारणियों का एक समूह बनाया जिससे लोग खगोलीय घटनाओं का अवलोकन कर सकें?

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?