original_query: How often has unemployment data been collected in India traditionally?
query: How often has unemployment data been collected in India traditionally?
answer: Traditionally, unemployment data in India has been collected, compiled, and disseminated once every ten years by the Ministry of Labour and Employment, primarily from sample studies conducted by the National Sample Survey Office (NSSO).  Outside of these 5-year sample studies, nationwide data was not routinely collected on a monthly, quarterly, or yearly basis until 2017.