The BSE Sensex rose about one per cent on Tuesday, snapping a four-day losing streak, as blue-chips such as Reliance Industries gained on continued hope of reforms, while a fall in crude oil prices helped. Firm cues from regional markets also underpinned sentiment as improved manufacturing data from China, Japan and the United States augured well for global growth, despite a disappointing result from the euro zone. The next big local trigger would be the first Budget of the new government, due on July 10. "We are very optimistic the government will create a better policy environment, which will boost investor confidence," said Deven Choksey, managing director, KR Choksey Securities. The benchmark BSE Sensex gained, 337.58 points, or 1.35 per cent, to 25,368.90 points, while the broader Nifty closed up 86.85 points, or 1.16 per cent, at 7,580.20 points.