Why is Envirotech Sys. falling/rising?

As of 17-Sep, Envirotech Systems Ltd is currently priced at 162.00, reflecting an increase of 0.6 (0.37%). The stock is performing inline with its sector, trading above its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages. However, there has been a notable decline in investor participation, with delivery volume dropping by 67.39% compared to the 5-day average. Despite this decrease in participation, the stock has shown strong performance over the past month, with a return of 10.17%, and a year-to-date increase of 32.19%. Unfortunately, there is no data available regarding positive or negative factors that could further explain the stock's recent movement.
Broader market context indicates that while Envirotech's stock has risen by 0.28% over the past week, the benchmark Sensex has outperformed it with a return of 1.43% in the same period. This suggests that while the stock is experiencing upward movement, it is lagging behind the broader market trends. Over the last month, however, Envirotech's performance of 10.17% significantly exceeds the Sensex's 2.84%, indicating a stronger relative performance in the longer term despite the recent decline in trading volume.