Mumbai, June 26 (UNI) Extending the winning streak for the third straight session today, the BSE Sensex zoomed up by 1,000.36 points to end firm at 83,755.51 backed by gains in Asian markets and continued optimism around a possible Israel-Iran ceasefire, traders saidContinued support from domestic institutional investors and expectations of further revival in corporate earnings in the first quarter of the ongoing fiscal year are also supporting market sentiment, traders added.