Principal Group - Eden River City. Principal Development Limited believes the journey to a thousand mile begins with a single step. Established in 2010, it is a steadily growing developer company in Real Estate Sector in Bangladesh, concentrating on developing apartments and land projects at the prime locations in the Dhaka City. Our projects will be the model in the Real Estate Sector and Insha Allah our innovative entrepreneurial skill will escort us to become one of the leading housing companies in Bangladesh.