State Minister for Shipping Khalid Mahmud Chowdhury participates on online as the chief guest at a discussion marking World Maritime Day organised jointly by Shipping Directorate and BIWTA in the city's Motijheel BIWTA Bhaban on Thursday. Shipping Secretary Mezbah Uddin Chowdhury, BIWTA Chairman Commodore Golam Sadek and DG of Shipping Directorate Commodore AZM Jalal Uddin were also present on the occasion.