Correct option is D
In India, initially, the High Yielding Variety Programme (HYVP) was implemented on about 2 million hectares of land.
Launched in - 1966-67
A part of the Green Revolution.
Initiative from the fourth Five-year plan.
By the mid-1970s, HYVP had spread to over 30 million hectares of land, and it had a significant impact on India's food security and economic development.