Explanations:Land usage surveys are critical for understanding how land is being used within a state. These surveys provide detailed information on the distribution of agricultural, forest, urban, and other types of land. This information is essential for planning and managing land resources effectively, supporting agricultural policies, and ensuring sustainable development.
In the context of North East India, which comprises several states including Arunachal Pradesh, Assam, Nagaland, and Tripura, the completion of a comprehensive land usage survey is a significant achievement. Such a survey involves detailed mapping and classification of land use, which can be a complex and time-consuming process. It requires the collection of data through various methods, including satellite imagery, ground surveys, and interviews with local communities.
Among the states listed in the options, Assam stands out as the only state that has completed a comprehensive land usage survey. This survey provides a detailed picture of how land is being used in Assam, which can be used for various purposes such as planning agricultural policies, managing natural resources, and supporting development initiatives. The completion of this survey is a testament to the state's commitment to understanding and managing its land resources effectively.
It is important to note that while Assam has completed this survey, other states in the North East of India may be in the process of conducting similar surveys or may have partial data. However, for the purposes of this question, the focus is on the state that has completed a comprehensive land usage survey, which is Assam.