The verbs that are used in this passage are in the wrong tense. They are also inconsistent with each other (they do not match). The passage is describing events that happened in 1996. Therefore, the verbs should reflect this by being in the past tense.
It was "India" that successfully maintained neutrality when it came to dealing with the two superpowers following World War II and carrying forward into the <span>'60s, since they had gained a great deal of autonomy after the relative fall of the British Empire. </span>