Why is RDB Rasayans falling/rising?

As of 12-Sep, RDB Rasayans Ltd is experiencing a decline in its stock price, currently at 160.50, reflecting a decrease of 2.4 or 1.47%. The stock has underperformed its sector today by 0.46%, and its delivery volume has fallen significantly by 40.43% compared to the 5-day average, indicating reduced investor participation. Over the past week, the stock has decreased by 1.23%, and over the past month, it has fallen by 5.23%. Despite a year-to-date return of 1.26%, the stock has generated a negative return of 3.46% over the past year, even as its profits have increased by 11.6%. The company maintains a low debt-to-equity ratio and a fair valuation, but it is trading at a premium compared to its peers.
In the broader market context, the Sensex has shown a positive return of 1.48% over the past week and 2.08% over the past month, contrasting with RDB Rasayans' declines. This suggests that while the overall market is performing well, RDB Rasayans is lagging behind, which may be contributing to the downward pressure on its stock price. The stock's performance relative to the benchmark indicates a lack of investor confidence, despite the company's solid fundamentals, as reflected in its return on equity and profit growth.