Is Power Grid Corpn overvalued or undervalued?

As of 12 October 2023, the valuation grade for Power Grid Corporation has moved from expensive to very expensive, indicating a significant increase in perceived valuation. The company is currently considered overvalued. Key ratios include a PE ratio of 17.73, an EV to EBITDA of 10.14, and a dividend yield of 3.52%.
In comparison to peers, NTPC is rated very attractive with a PE of 13.78, while Adani Power is categorized as expensive with a PE of 16.55. The elevated valuation of Power Grid Corporation is further underscored by its PEG ratio of 0.00, suggesting no growth expectations priced in, which contrasts sharply with some peers. Despite a recent one-week stock return of 1.77% compared to the Sensex's 1.43%, the longer-term performance shows underperformance, with a year-to-date return of -3.37% against the Sensex's 5.63%.