The Indian benchmark indices opened in green on Tuesday amid positive global cues, as geopolitical tensions eased after Iran-Israel ceasefire announced by US President Donald Trump. Buying was seen in the auto, IT, PSU bank and financial service sectors in the early trade. At 9:31 am, Sensex surged 756.5 points (0.92%) to 82,653.33, while Nifty rose 229 points (0.92%) to 25,200.90.