Like the People's Republic, India regarded control over its frontier as a fundamental part of nationhood. India fortified its border with Pakistan not long after the 1947 partition. China's advance on and infiltration of India's peripheries began to dominate Indian thinking prior to the 1962 war, however. Indian leaders posited that Beijing was chipping away at important buffer zones while diminishing India's sphere of influence. Domination of Tibet by the People's Republic as well as Beijing's overtures to the Himalayan kingdoms and Southeast Asia shaped this perspective.

Indian officials had much to consider about how to respond to China. Some adopted a realist approach early on, arguing that India needed to recognize the Chinese threat and secure the border region. Some attached great significance to Hindi-Chini bhai bhai and eschewed confrontation, while others held moderate or ambivalent views. In the end, the Indian government used military contingency plans, economic development, careful management of the frontier town of Kalimpong and Tibetan border crossers (e.g., the Dalai Lama), and high-level diplomacy to deal with an increased Chinese presence at the frontier. These measures succeeded to varying degrees.

Border Security through Military Means

Concerned Indians interpreted the October 1950 Chinese invasion of Tibet as an event that foreshadowed future border problems. Poet, nationalist, and mystic Shri Aurobindo stated in November 1950 (three weeks before he died) that the People's Liberation Army had entered Tibet to extend China's frontiers and threaten India in the future.