पश्चिम बंगालमधील डाव्या सरकारने 1977 साली _____ जमीन सुधारणापद्धत अंमलात आणली.

The correct answer is Option B (Barga Operation).

Key Points:
• Operation Barga (बरगा ऑपरेशन) is regarded as one of the most successful tenancy land reform movements in post-independence India.
• Historical Context:
• Launched in 1978 (immediately after the Left Front Government led by Chief Minister Jyoti Basu took office in 1977) in West Bengal under the Land Reforms Commissioner D. Bandyopadhyay.
• Mechanics of Operation Barga:
• Legally registered sharecroppers (known locally as *Bargadars*) and recorded their names in village land revenue records.
• Guaranteed hereditary cultivation rights, protected them from eviction by landlords, and statutorily secured 75% of the produce for the Bargadar (if they provided inputs).
• Therefore, Option 2 (Barga Operation) is the correct answer.
• Key Takeaway: Operation Barga was launched by West Bengal's Left Front government to record and protect the hereditary tenancy rights of bargadars (sharecroppers).