Why is TD Power Systems falling/rising?

As of 15-Sep, TD Power Systems Ltd is currently priced at 553.00, reflecting a decrease of 1.0 (-0.18%). The stock has been underperforming recently, having fallen for the last two days with a cumulative decline of -0.39%. Despite this short-term dip, the stock has shown strong performance over the past month, gaining 8.72%, and has significantly outperformed the benchmark Sensex over various periods, including a remarkable 322.82% increase over the last three years. However, the stock is currently 4.1% away from its 52-week high and has seen a decline in investor participation, with delivery volume dropping by 34.02% compared to the five-day average. While the company has demonstrated healthy long-term growth and consistent positive results, the recent decrease in promoter confidence, indicated by a 6.34% reduction in their stake, may be contributing to the stock's current downward movement.
In the broader market context, TD Power Systems' recent performance contrasts with the Sensex, which has increased by 1.24% over the past week. Although the stock has shown impressive returns year-to-date and over the past year, the recent decline in promoter confidence and the stock's premium valuation compared to its peers may be causing investors to reassess their positions. The stock's high Price to Book Value ratio and the significant rise in profits relative to its returns could also be factors leading to caution among investors, despite the company's strong operational metrics and low debt levels.