Multiple choice Which pair is not correct? I Plan - (1951-56) III Plan - (1966-71) VI Plan - (1980-85) X Plan - (2002-2007) Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Third Five-Year Plan was from 1961-1966. The period 1966-1969 was known as the 'Plan Holiday' period, not the Third Plan.