The Urban Development Authority on behalf of the Government would shortly call for tenders from investors to construct an international school, hospital and an International Conference Hall at the Colombo Port City premises, Megapolis and Western Development Minister Patali Champika Ranawaka announced yesterday.He said the future development work of the Colombo Port City would be carried out according to the tri-partite agreement. He said the government has been able to develop the lands of the Port City as several clauses of the agreement were revised.He further said that some plots of the Port City land would be leased to China Harbour Company shortly for the task of building the financial city as it has undertaken the responsibility to build it.