The correct answer is: Focus group discussions.
House-to-house enumeration is the primary method used for collecting Census data in Himachal Pradesh. This involves enumerators visiting households and collecting data on a range of topics, including population, housing, education, employment, and economic activity.
Online surveys are also used to collect Census data in Himachal Pradesh. This is a convenient option for people who do not have time to be visited by an enumerator or who live in remote areas.
Satellite imagery is used to collect data on the physical features of Himachal Pradesh, such as land use, vegetation, and water bodies. This data is used to create maps and to identify areas that need to be surveyed in more detail.
Focus group discussions are not used to collect Census data in Himachal Pradesh. This is because they are not a reliable way to collect data from a large population. Focus group discussions are typically conducted with a small group of people who are selected based on their knowledge or experience of a particular topic. The results of focus group discussions are not representative of the views of the wider population.