Arrange the events in chronological order:

(A) China occupies Aksai-Chin area
(B) Full diplomatic relations was restored between India and China
(C) Atal Behari Vajpayee the first top level leader to visit China
(D) China's massive invasion

Choose the correct answer from the options given below:

(A), (D), (B), (C)

The correct answer is Option (3) → (A), (D), (B), (C)

(A) China occupies Aksai-Chin area :  Between 1957 and 1959, the Chinese occupied the Aksai-chin area and built a strategic road there. 
(D) China's massive invasion. October 1962
(B) Full diplomatic relations was restored between India and China. 1976
(C) Atal Behari Vajpayee the first top level leader to visit China. Atal Behari Vajpayee was the first top level leader (he was then External Affairs Minister) to visit China in 1979.