The District Institute of Education and Training (DIET) is a district-level institution established to strengthen academic functions and promote teacher empowerment programmes within the district. It also plays a crucial role in supporting and mobilizing the community to ensure access to quality education for all learners. With this vision, DIET Bongaigaon was established in 2013 and became operational in July 2014.

Since its inception, the institute has been working towards enhancing the professional competencies of in-service teachers, prospective teachers, and other educational stakeholders connected with school education in the district. DIET Bongaigaon serves as a key academic resource centre by organizing training programmes, workshops, and capacity-building initiatives aligned with national and state educational priorities. The institute is also actively involved in curriculum implementation, pedagogical innovation and educational research to improve teaching-learning outcomes at the grassroots level.

The District Institute of Education and Training (DIET), Bongaigaon is affiliated with Bodoland University and recognized by the National Council of Teacher Education (NCTE), India. DIET Bongaigaon offers a range of programs, including:

• Diploma in Elementary Education (D.El.Ed.)
• Bachelor of Education (B.Ed.)