Why is Shankara Build. falling/rising?

As of 24-Sep, Shankara Building Products Ltd is experiencing a significant decline in its stock price, currently at Rs. 235.60, reflecting a decrease of 753.9 points or 76.19%. The stock has hit a new 52-week low today and has underperformed its sector by 60.56%. It opened with a substantial loss of 74.94% and reached an intraday low of Rs. 235.60. Over the past week, the stock has seen a staggering decline of 75.29%, and its performance over the last month shows a drop of 77.22%. Despite some positive factors such as a strong ability to service debt and healthy long-term growth in net sales and operating profit, the recent decrease in promoter confidence, with a 9.07% reduction in their stake, raises concerns about the company's future prospects.
Broader market context indicates that while Shankara Building Products has significantly underperformed against the benchmark indices, the Sensex has only declined by 1.18% over the past week. This consistent underperformance is evident over the last three years, where the stock has generated returns of -68.46% compared to the Sensex's gain of 40.65%. The construction material sector itself has also faced challenges, falling by 15.65%. The combination of these factors, particularly the declining promoter confidence and the stock's inability to keep pace with the broader market, contributes to the ongoing downward pressure on Shankara Building Products' stock price.