Banknifty future today closed at 17304 with 300 points gain. Another strong short covering rally and banknifty at fresh 2016 high. For tomorrow 17480 is major hurdle if banknifty closes above it then expect 18100 as next tgt. For intraday, banknifty future support zones are 17100 and 16800. While on upside 17480 and 17505 are strong resistances. Keep buy on dips at support strategy for banknifty future for tgt 17480 and above. Option traders watch banknifty 17500 call options for intraday.