The District Institutes of Education and Training (DIETs) are government teacher training colleges that have been set up in most districts of the country. The DIET Partnership Program was started in 2015 to improve the ability of future primary school teachers to identify and address children’s foundational learning needs. 

Pratham and ASER Centre teams trained students who were studying to become teachers in selected DIETs. They learnt how to understand children’s current learning levels, group children by learning level, and teach each group of children using methods and materials designed to help them acquire foundational skills in reading and arithmetic in a short period of time. The course was based on Pratham’s Combined Activities for Maximised Learning (CAMaL) approach, better known today as Teaching at the Right Level or TaRL.