A comparison of night light data from 2013 and 2023 shows that most Assembly constituencies in Bihar continue to remain predominantly rural. Only a few constituencies have shown significant growth in nighttime luminosity, primarily in Patna, which was already among the more urbanised parts of the State.

Nighttime illumination can serve as a useful proxy for gauging human activity and electricity usage in an area. A higher concentration of night lights often reflects not just street or vehicular lighting, but also ongoing economic activities such as construction or roadwork. Together, these patterns of brightness offer a visual measure of urban growth and development.

The Hindu Data Team uses this method to classify constituencies in a State as rural, semi-rural, semi-urban, or urban. Th

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