Why is National Fitting falling/rising?

As of 29-Sep, National Fittings Ltd's stock price is currently at Rs 178.00, reflecting a decrease of Rs 15.6, or 8.06%. The stock has underperformed its sector by 8.69% today, reaching an intraday low of Rs 178. The trading volume has significantly decreased, with a delivery volume of 4.83k on September 26, which is down 70.61% compared to the 5-day average. Despite the stock's strong performance over the longer term, with a year-to-date increase of 31.80% and a 3-year increase of 219.28%, the recent decline indicates a shift in investor sentiment, possibly influenced by falling participation and liquidity concerns.
In the broader market context, the Sensex has only declined by 2.18% over the past week, while National Fittings Ltd has seen a much steeper drop of 18.72% in the same period. This stark contrast suggests that the stock's recent struggles are not solely reflective of broader market trends but may be attributed to company-specific issues. The stock's performance over the past month shows a modest gain of 3.82%, yet the current downturn indicates a potential loss of confidence among investors, diverging from the overall market's relatively stable performance.