Why is T N Telecom. falling/rising?

As of 24-Jul, Tamil Nadu Telecommunications Ltd is experiencing a decline in its stock price, currently at 21.79, reflecting a decrease of 0.44 or 1.98%. The stock has been underperforming, having fallen consecutively for the last nine days, resulting in a total drop of 16.55% during this period. Despite a strong long-term performance with a 117.90% return over the past year, the stock's recent movement is negatively impacted by a negative book value and weak long-term fundamentals, including stagnant net sales growth and a high debt-to-equity ratio. Additionally, the stock's delivery volume has significantly decreased, indicating falling investor participation, which may contribute to the ongoing price decline.
In the broader market context, the stock's short-term performance has sharply diverged from the benchmark, with a 9.55% decline over the past week compared to a minimal drop of 0.09% in the Sensex. While Tamil Nadu Telecommunications Ltd has outperformed the benchmark in the long term, the recent negative trends in both stock performance and financial health suggest a challenging environment for investors. The combination of poor quarterly results, including a significant drop in profit after tax, further exacerbates the stock's current struggles, making it a risky investment compared to its historical valuations.