खालीलपैकी कोणता कालावधी नियोजन सुट्टीचा कालावधी म्हणून ओळखला जातो ?

The correct answer is Option C (1966-69).

Key Points:
• ⏳ The period from 1966 to 1969 (three annual plans) is designated as the 'Plan Holiday' (नियोजन सुट्टी) in Indian economic planning history.
• The Third Five-Year Plan (1961–1966) failed miserably due to unforeseen external crises: the Sino-Indian War of 1962, the Indo-Pak War of 1965, and two consecutive severe drought years (1965 and 1966) causing agricultural collapse and inflation.
• Because of depleted financial resources and currency devaluation in June 1966, the Fourth Five-Year Plan had to be postponed.
• During this interregnum (1966–67, 1967–68, and 1968–69), three Annual Plans were formulated, during which the breakthrough of the Green Revolution (HYV seeds, fertilizers) was introduced.
• The Fourth Plan was subsequently launched in 1969. Thus, 1966–69 is known as the Plan Holiday (Option 3).
• Key Takeaway: The period 1966–1969 is known as the Plan Holiday, during which three Annual Plans were implemented.