Complex sentence: Dr. Arain has consulted, researched and published widely in the discipline of Project Management and Design and Construction Management and has delivered invited lectures in various countries i.e., Canada, Singapore, Australia, Malaysia, Bahrain, Saudi Arabia and Pakistan.
Split into simpler sentences: Dr. Arain has consulted, researched and published in the discipline of Project Management and Design and Construction Management. He has lectured in various countries, including Canada, Singapore, Australia, Malaysia, Bahrain, Saudi Arabia and Pakistan.