कोणत्या कालावधीत पंचवार्षिक योजना कार्यान्वित नव्हत्या किंवा केव्हा वार्षिक योजना राबविल्या गेल्या ?
(a) 1966-1969
(b) 1990-1992
(c) 2000-2002
पर्याय आहेत :

The correct answer is Option A ((a) and (b)).

Key Points:
• Plan Holidays & Annual Plans: In India's economic planning history, periods where formal Five-Year Plans could not be launched due to severe economic shocks or political transitions are known as Plan Holidays or intervals of Annual Plans.
• ⏳ First Plan Holiday (1966-1969): Following the exigencies of the Indo-Pakistan War, severe drought, and devaluation of the rupee, the Fourth Five-Year Plan was delayed, leading to three Annual Plans from 1966 to 1969 (Statement a).
• ⏳ Second Interregnum (1990-1992): Due to acute balance of payments crises, political instability, and the transition toward economic liberalization, the Eighth Five-Year Plan could not start on time, resulting in Annual Plans for 1990-1991 and 1991-1992 (Statement b).
• Statement (c) Analysis: The period 2000-2002 was covered under the ongoing Ninth Five-Year Plan (1997–2002), so no plan holiday occurred then.
• Conclusion: Statements (a) and (b) correctly mark the periods of Annual Plans.
• Key Takeaway: Annual plans (Plan Holidays) were implemented during 1966–1969 and 1990–1992 due to economic and political transitions.