Correct Answer: Nagpur Road Plan

Solution : The correct answer is the Nagpur Road Plan .

The inaugural Road Development Plan, the Nagpur Plan, emerged in 1943. Post-independence, the First Five-Year Plan (1951-56) categorized roads into National Highways, State Highways, District Roads and Village Roads. The Twenty-Year Plan, commonly referred to as the Bombay Plan (1961-81), envisioned a substantial growth in the Indian road network, particularly emphasizing the expansion of National and State Highways.