Will NIFTY take SUPPORT from the trendline..?

As we can see NIFTY couldn’t sustain itself above 18600 and fell unidirectionally! Now we can expect NIFTY to fall further till the trendline wherein any signs of rejection around that area should be a good buy as 18500 being a psychological level could act as a catalyst being a good support so keep watching and wait for better opportunity to enter for long