It is a commonplace to observe that the emergence of China as a great power is the most significant geopolitical phenomenon of the current decade. However, the implications of the ‘rise’ of China—a useful, if misleading shorthand for a complex historical development—are far from evident and have attracted a full-throated debate. For India, in particular, China’s rise is likely to have important and far-reaching ramifications. Five decades after the 1962 war, the prospect of having a great power in our immediate neighbourhood continues to unnerve most Indian observers.

Fifty years since the 1962 war, India and China have moved on to become world powers with engagement and competition characterizing their relationship in keeping with the rules of realpolitik. Both sides argue that the past has been forgotten, yet the border dispute remains unresolved. Despite the rapprochement and robust economic engagement undertaken, the relationship has a constant undercurrent of tension and is often described as fragile.

This article will argue that the legacy of the 1962 Sino-Indian War continues to affect China’s policy towards India even today. The three factors that led to China’s decision in 1962 to attack India—the status of Tibet, the militarization of their unresolved border and fears of containment—are present even today, albeit in slightly modified forms. This is not to argue that another Sino-Indian War is imminent because the larger strategic context within which China’s leaders took the decision to attack India in 1962 has changed.

How have commentators perceived India’s defeat in the Sino-Indian border conflict of 1962? What were its underlying reasons? Can the entire blame be cast on China for its surprise attack? Or, were India’s thoughtless actions also responsible? After touching on these questions, this article describes the defence reforms undertaken by India after the border conflict in 1962 in the light of the shortcomings and deficiencies highlighted.