Food and Agriculture Organization of the United Nations (FAO) representative to Bangladesh Mike Robson called on Dhaka University (DU) Vice-Chancellor Professor Dr AAMS Arefin Siddique on Monday at the latter's office of the university. Professor Dr Imdadul Hoque, Dean of the Faculty of Biological Sciences, DU, and Dr Nur Ahamed Khondaker, Assistant FAO Representative(Programme), were also present on the occasion.