Why is Envirotech Sys. falling/rising?

As of 22-Sep, Envirotech Systems Ltd is experiencing a decline in its stock price, currently at 143.85, reflecting a decrease of 9.95 points or 6.47%. The stock has underperformed its sector today by 5.97%, and while it is trading higher than its 100-day and 200-day moving averages, it is below its 5-day, 20-day, and 50-day moving averages. Over the past week, the stock has seen a decline of 7.67%, although it has gained 0.49% over the past month and has a year-to-date increase of 17.38%. Notably, there has been a significant rise in investor participation, with delivery volume increasing by 107.55% against the 5-day average, indicating heightened interest despite the current price drop. There is no information available regarding positive or negative factors affecting the stock.
In the broader market context, the Sensex has shown a slight increase of 0.53% over the past week, contrasting with Envirotech's decline. This suggests that the stock's performance is lagging behind the overall market trend. Additionally, while the stock has performed well year-to-date compared to the benchmark, its recent underperformance in the short term indicates that it may be facing specific challenges that are not affecting the broader market. The liquidity of the stock remains adequate for trading, as it is based on 2% of the 5-day average traded value, which supports ongoing trading activity despite the price decline.