https://asercentre.org/about-aser-2023/
Facilitated by Pratham Education Foundation since 2005, Annual Status of Education Report (ASER) is a large-scale citizen-led household survey that aims to understand whether children in rural India are enrolled in school and whether they are learning. The basic, nationwide ASER survey is conducted every alternate year. It collects data on the enrolment status of children in the age group of 3-16 years, and basic reading and arithmetic levels of children in the age group of 5-16 years.