The deceased was identified as Ashraful Islam, 21, son of Joynal Abedin of Nilphamari district.
Ashraful fell from the sixth floor of the under-construction building at 10:45 PM and sustained injuries, said Sub-inspector Saiful who was on duty at the Secretariat.
Later, he was taken to Dhaka Medical College Hospital where the doctors declared him dead around 11:15 am.
Meanwhile, the Ministry of Housing and Public Works formed a four-member probe committee led by additional secretary (administration) Dr. Md Afzal Hossain, to investigate the incident and it was asked to submit report within three working days.
Audit and Monitoring circle of the Directorate of Public Works also formed a three-member probe committee which also was to submit report within 3-days.