touched 832 as intra day low but closed above 840. 840 is a long term support. Based on valuations 840 is blind buy for long term.the second fall was till 839 and it reversed from that point. we see a channel forming with flat top at 860.the next bottom reversed from 845. at current levels it is a buy (buy below 850 ) and with a tight SL at 835.
once the temporary resistance t 860 will break it will taste upper levels.