The chart is of daily timeframe. We can observe that the stock has taken support from the support trendline for more than a year on multiple occassions (more than 5). Thus this support can be considered as a strong one. However a support zone or trendline which has been tested multiple times tends to break.
So what should a trader do here?
It is best to wait for the stock to reach the support trendline and observe the candle formation. If the stock respects the suppor trendline and forms a bullish hammer right at the support trendline, then one should go on the buy side with a stoploss just below the support trendline. If the stock breaks the trendline support, then one can short it with a SL above the trendline.