Dhaka, Oct. 6 -- The Anti-Corruption Commission (ACC) is probing whether leaked estimates and contractor collusion drove up the cost of free textbooks by nearly Tk 2.52 billion.

An ACC enforcement team from its headquarters raided the National Curriculum and Textbook Board office in Dhaka's Motijheel on Tuesday.

The team collected documents including copies of preliminary estimates, official price lists and minutes of the NCTB's 423rd board meeting, according to an ACC statement.

The documents will be examined before a full report is submitted to the commission.

The probe comes amid allegations that estimated prices for printing textbooks for the 2027 academic year were leaked, later increased and then divided among contractors.

Acco...