P. S. Markan Udru was established in 1956. P. S. Markan Udru is a Co-ed located at Markan, Hussainganj in Siwan district of Bihar, India. It is affiliated with Bihar Intermediate Education Council (BIEC). P. S. Markan Udru is a primary with upper primary,. It is owned and operated by the Department of Education.

It believes in overall development of the students by balancing academics, extra curricular activities, sports in the state of art infrastructure within the campus. The school offers playgrounds for cricket, basketball, volleyball, table tennis, badminton and other sports. The admission process for this School starts every year in the month of May and School starts in July.