Why is Selan Expl. Tech falling/rising?

As of 22-Aug, Selan Explorations Technology Ltd's stock price is currently at 554.10, reflecting a decline of 6.15, or 1.1%. The stock has been experiencing a downward trend, having lost 1.41% over the last two days. Despite opening with a gain of 3.53% today and reaching an intraday high of Rs 580, it has not sustained this momentum. The stock's performance over the past week shows a positive return of 5.78%, but it has significantly underperformed over the longer term, with a year-to-date decline of 32.71% and a one-year drop of 44.01%. Additionally, there has been a notable decrease in investor participation, with delivery volume falling by 69.1% compared to the five-day average, indicating reduced interest in trading the stock.
Broader market context reveals that while Selan Explorations has shown a strong return of 163.17% over the past three years, its recent performance contrasts sharply with the benchmark Sensex, which has gained 4.05% year-to-date. In the short term, the stock's 1-month return of -15.62% also underlines its struggles compared to the Sensex's slight decline of 1.07% in the same period. This disparity suggests that the stock is facing specific challenges that are not affecting the broader market to the same extent, contributing to its recent price decline.