Beijing - Leaders from Brazil, Russia, India and China attending the two-day BRIC summit that commenced on Thursday in Brasilia, believe it is time to raise their voice and have a greater say in world affairs.

There is a consensus among the four countries that they need to form strong ties to better participate in international affairs and the governance of the global economy.

"The emerging powers, whose group rise is one of the world's major trends, have amplified their influence over international political and economic affairs amid the financial crisis," Chinese Ambassador to Russia, Li Hui, said.