External Affairs Minister SM Krishna told world leaders here that India continued to face enormous developmental challenges and poverty eradication remains the nation's top priority.

"Nearly 200 millions live on less than one dollar a day and nearly 500 millions do not have access to modern sources of energy," he said. "Our overriding priority, therefore, has to be eradication of poverty for which we must address our energy poverty and use all sources of energy, including fossil fuels," he added.