Backed by over 100 developing countries, India, Brazil and South Africa will take on the rich nations to get a fair trade deal at the WTO meeting of key trade ministers' beginning here on Monday. Against a backdrop of high crude oil prices and global food crisis, the World Trade Organisation has convened a five-day mini Ministerial Meeting with a hope that closing the Doha Round can reinvigorate the world economy which is in the grip of a slowdown.