The Green Revolution of the 1960s transformed Punjab into:

A major industrial hub
India's breadbasket
A center for IT and technology
A tourism destination

The correct answer is: b) India’s breadbasket.

The Green Revolution was a period of agricultural development in the 1960s and 1970s that increased agricultural production globally. The Green Revolution was particularly successful in India, where it helped to increase food production and reduce poverty.

Punjab was one of the states in India that benefited the most from the Green Revolution. The state’s agricultural production increased significantly, and it became known as India’s breadbasket. The Green Revolution also helped to improve the lives of many people in Punjab, as it led to increased employment and income opportunities.

The other options are incorrect. Option a) is incorrect because Punjab is not a major industrial hub. Option c) is incorrect because Punjab is not a center for IT and technology. Option d) is incorrect because Punjab is not a major tourism destination.