In 2011, the Indian government wanted to count how many people lived in India and collect other important information about them. So, they asked people all over the country to answer questions about themselves and their families. The government used this information to plan things like education, healthcare, and other important services that people need. Think of it like counting all the toys in your toy box and figuring out which ones you need more of. The census helps the Indian government understand how many people live in different parts of the country, what kind of work they do, and even what languages they speak. It helps them make important decisions to improve the lives of people in India.