Port of Antwerp International (PAI) has invested Rs. 175 crore ($ 31 million) in Essar Ports through Global Depository Receipt (GDR) as part of a strategic alliance..AZB & Partners advised PAI with a team led by Partners Ashwin Ramanathan and Varoon Chandra along with Associate Rinki Ganguli.Amarchand Mangaldas advised Essar Ports with a team led by Partner Amita Choudary..ET reports, the partnership is aimed at technical assistance for port planning, process improvement, and quality and productivity improvement..PAI is the authority for the port of Antwerp, which is an international port based in Belgium, and the second-largest port in Europe. It handles 187 million tonnes of freight in 2011..Essar Ports has two operational ports at Hazira and Vadinar in Gujarat.