NEW DELHI (Reuters) - Indian Prime Minister Manmohan Singh forecast economic growth of more than 6.5 percent for this fiscal year on Wednesday, a more optimistic take than a recent spate of private projections that saw growth slowing to as low as 5.5 percent. "Last year our GDP grew by 6.5 percent. This year we hope to do a little better," Singh said in his annual Independence Day speech, promising that faster infrastructure development would boost growth. "Recently we have taken new measures to accelerate infrastructure development. ...