Correct Answer: Punjab, Tamil Nadu, and Andhra Pradesh

Solution : The correct answer is Punjab, Tamil Nadu, and Andhra Pradesh .

In the first phase of the Green Revolution in India, which began in the 1960s and aimed to increase agricultural productivity, the use of high-yielding variety (HYV) seeds was initially restricted to the more affluent or progressive states of the country. These states were considered more advanced in agriculture and infrastructure, and they were early adopters of modern agricultural practices and technology.

The states that were at the forefront of adopting HYV seeds during the initial phase of the Green Revolution included Punjab, Andhra Pradesh, and Tamil Nadu, among others. These states had better irrigation facilities, supportive government policies, and a higher concentration of landowners and farmers who could afford the initial investment in new seeds, fertilisers, and other modern farming techniques.