Bangladesh Oil, Gas and Mineral Corporation (PETROBANGLA)

Chittagong University of Engineering and Technology -CUET

Office of Civil Surgeon, Barisal

Bangladesh Oil, Gas and Mineral Corporation (PETROBANGLA)

Office of Civil Surgeon, Noakhali

Directorate of Technical Education

University of Dhaka

Ministry of Disaster Management and Relief

Office of Tax Commissioner, Chattogram

Sylhet MAG Osmani Medical College

Al-Arafah Islami Bank PLC