Read the following passage carefully and answer the questions based on it :
"Tibet is one of the major issues that historically caused tension between India and China. From time to time in history, China had claimed administrative control over Tibet and from time to time, Tibet was independent too. In 1950, China took over the control of Tibet. Large sections of the Tibetan population opposed this takeover. The Tibetan leader accompanied the Chinese Premier during his official visit to India in 1956."