Why is Petro Carbon falling/rising?

As of 20-Aug, Petro Carbon & Chemicals Ltd is experiencing a decline in its stock price, currently at 179.50, which reflects a decrease of 1.5 points or 0.83%. The stock has underperformed its sector today by 2.16%, and the delivery volume has significantly decreased by 44.95% compared to the 5-day average, indicating falling investor participation. Over the past week, the stock has shown a modest gain of 0.70%, but it has significantly underperformed over the longer term, with a year-to-date decline of 14.85% and a one-year drop of 33.80%. Unfortunately, there is no information available regarding positive or negative factors that could further explain the stock's recent movement.
In the broader market context, the stock's performance over the past week is notably weaker than the benchmark Sensex, which has increased by 1.75% during the same period. While the stock has shown some resilience in the short term with a slight gain over the last month, its year-to-date and one-year performances starkly contrast with the Sensex's gains of 5.95% and 1.42%, respectively. This underperformance relative to the benchmark suggests that investor sentiment may be leaning negatively towards Petro Carbon, contributing to its current price decline.