Bangladesh Petroleum Corporation

Office of District Commissioner, Rangpur

Office of Civil Surgeon, Barisal

University of Dhaka

Land Record and Survey Department

Land Record and Survey Department

Opsonin Herbal and Nutraceuticals Limited (OHNL)

Office of Civil Surgeon, Noakhali

Chittagong University of Engineering and Technology -CUET

Office of Civil Surgeon, Netrokona

Office of Civil Surgeon, Barisal