new delhi equity indices continued to surge for the seventh straight session on tuesday with both bse and nse scaling new heights as global investors applauded progress in the development of a coronavirus vaccine which lifted confidence for a faster world economic recoveryafter scaling an intraday high of 43316 the benchmark bse sensex settled 680 points or 160 per cent higher at record closing of 43278 while the broader nse nifty finished 165 points or 132 per cent higher at fresh peak of 12631read alsobehind pfizers vaccine an understated husbandandwife dream teamfrom humble roots as the son of a turkish immigrant working at a ford factory in cologne biontech chief executive ugur sahin 55 now figures among the 100 richest germans together with his wife and fellow board member oezlem tuereci 53 according to weekly welt am sonntagtop gainers in the sensex pack included bajaj finance indusind bank lt bajaj finserv sbi and hdfc with their shares rising as much as 894 per centwhile tech mahindra hcl tech infosys nestle india sun pharma and tcs were the major losers falling up to 573 per centon nse platform subindices nifty bank private bank psu bank and financial services with their shares gaining as much as 411 per centelsewhere in asia bourses in hong kong seoul and tokyo ended with gains while shanghai settled lowerstock exchanges in europe were mostly trading on a positive notepfizer inc said its covid vaccine developed with german partner biontech se was more than 90 per cent effective in preventing infection marking the first successful results from a largescale clinical trial announcements by biontech and pfizer about successful phase 3 trial of covid19 vaccine instilled confidence among investors and possibility of sustained economic recovery led sharp buying in beaten down stocks arjun yash mahajan head institutional business at reliance securities told news agency ptihowever some analysts sounded caution over the speed in which the vaccine could be implementedon the currency front rupee depreciated 3 paise to close at 7418 against the us dollar as higher crude oil prices and stronger dollar against key global currencies weighed on sentimentmeanwhile foreign institutional investors remained net buyers in the domestic capital market as they purchased shares worth rs 454839 crore on monday according to provisional exchange datainternational oil benchmark brent crude was trading 142 per cent higher at 43 per barrelwith agency inputs