In India, the concept of single citizenship is adopted from England. Single citizenship means that every citizen of India is considered a citizen of the country as a whole, and not of any specific state or region within it. This concept is followed in countries like England, where there is no distinction between national and regional citizenship.

The idea of single citizenship in India was influenced by the British colonial rule, during which the British Crown was considered the single sovereign authority over all the territories in India. After independence, India adopted this concept to ensure equal rights and responsibilities for all its citizens, regardless of their state or region. This means that an Indian citizen has the same rights and privileges in any part of the country, and is not restricted by state boundaries.