The Green Revolution of the 1960s was a major turning point that transformed Punjab into:

India's breadbasket
An industrial hub
A center for IT and technology
A major tourist destination.

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

The Green Revolution was a period of agricultural development in the 1960s and 1970s that increased agricultural production globally. It was led by Norman Borlaug, an American agronomist who developed high-yield varieties of wheat and rice. The Green Revolution was particularly successful in India, where it helped to increase food production and reduce hunger.

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 led to economic development in Punjab, as farmers became wealthier and were able to invest in their businesses.

The other options are incorrect. Option b) is incorrect because Punjab is not an 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 tourist destination.