The Green Revolution in its first phase (mid-1960s to mid-1970s) was largely ineffective in which of the following regions?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Bihar.
During its first phase (mid-1960s to mid-1970s), the Green Revolution relied heavily on High-Yielding Variety (HYV) seeds, which required sophisticated irrigation and chemical fertilizers. Consequently, its benefits were restricted to affluent, well-irrigated regions like Punjab, Haryana, and Tamil Nadu. States like Bihar lacked adequate irrigation infrastructure, institutional credit, and resources, making the revolution largely ineffective there during this initial period until it expanded in the second phase.