How India handled the border issue in the postbellum contrasted with the approach by the People's Republic. A trend of frontier military neglect by India reversed with the onset of the 1962 war. The shock of defeat compelled Indian policymakers to develop a lean, well-trained fighting force. Consequently, India's defense budget increased from five billion rupees in 1962–1963 (1.5 trillion rupees adjusted for inflation) to seven billion rupees in 1963–1964 (2.2 trillion rupees adjusted for inflation). To place these figures into perspective, India's defense budget in 1950–1951 only amounted to 1.64 billion rupees (704 billion rupees adjusted for inflation). Partly due to this increased defense budget, India made up for its defeat in 1962 by achieving victory over Chinese forces in 1967. Indian leaders comprehended the impracticality of attempting to match China's army size, instead focusing on ways to make the border with China impenetrable.

In addition, India expanded development aid to political entities along the Sino-Indian frontier. Indian leaders remained convinced that Beijing endeavored to bring the Himalayan kingdoms and Burma into its orbit. New Delhi combatted Chinese incursions through countersubversion efforts. Certain techniques India used to project itself at the frontier were novel, but New Delhi's overall frontier strategy deviated only slightly from that of the pre-1962 era. The key change was its level of assertiveness.