With respect to the components of population density, which of the following states is the odd one out?

According to the Census of India, population density varies vastly across states:
* Bihar has the highest population density with $1106{\text{persons/km}}^2$.
* Uttar Pradesh ($829{\text{persons/km}}^2$) and Tamil Nadu ($555{\text{persons/km}}^2$) also feature among the highly dense regions of India.
* Arunachal Pradesh, on the contrary, has the lowest population density in India with just $17{\text{persons/km}}^2$.

Hence, Arunachal Pradesh is the odd one out due to its exceptionally low population density compared to the other high-density states listed.