The trendline which used to act as resistance is being converted as support and tested multiple times. Will the trade take support at support line to hit previous high's and beyond. Not sure, but yes a long on Nifty50 scrip seems logical from a long term point of view as the scrip trading well below 50sma. Please perform your own analysis for SL and Profits. Always remember, you are responsible for the trades you take or consult an advisor.