Why is United Nilgiri falling/rising?

As of 19-Sep, United Nilgiri Tea Estates Company Ltd is experiencing a decline in its stock price, currently at 487.10, which reflects a decrease of 3.05 or 0.62%. The stock has underperformed its sector by 0.5% today, and its delivery volume has significantly dropped by 47.76% compared to the 5-day average, indicating falling investor participation. Over the past month, the stock has decreased by 4.10%, while year-to-date it has fallen by 10.69%. Despite a positive return of 17.02% over the past year and a strong performance of 50.67% over the last three years, the current trend suggests a struggle against recent market pressures.
In the broader market context, the Sensex has shown a positive return of 0.85% over the past week and 1.39% over the past month, contrasting with United Nilgiri's negative short-term performance. This indicates that while the overall market is experiencing growth, United Nilgiri is lagging behind, which may be contributing to the stock's decline. The stock's performance relative to the benchmark highlights its challenges in attracting investor interest, especially given the liquidity metrics that suggest it remains liquid enough for trading despite the recent downturn.