Why is Plastiblends (I) falling/rising?

As of 15-Sep, Plastiblends India Ltd is experiencing a decline in its stock price, currently at 195.35, reflecting a decrease of 0.65 or 0.33%. The stock has underperformed its sector by 0.27% today and has fallen after three consecutive days of gains. In terms of returns, the stock has shown a negative performance over the past week, down 1.14%, and a significant decline of 41.21% over the past year. The company has a low debt-to-equity ratio of 0.03, but its operating profit has decreased at an annual rate of 4.28% over the last five years, indicating poor long-term growth prospects. Additionally, the stock is trading at a premium compared to its peers, with a price-to-book value of 1.2, and domestic mutual funds hold no stake in the company, suggesting a lack of confidence in its valuation.
In the broader market context, the Sensex has increased by 1.24% over the past week, contrasting with Plastiblends' negative return, which highlights the stock's underperformance relative to the benchmark. While the stock has shown some positive movement over the past month with a 4.41% increase, its year-to-date performance remains poor at -19.44%, further emphasizing its struggles in both the short and long term. The falling investor participation, as evidenced by a 34.33% drop in delivery volume, and the overall below-par performance compared to the BSE500 in recent periods contribute to the negative sentiment surrounding the stock.