This comprehensive collection of datasets, derived from the annual Prison Statistics India (PSI) reports by the National Crime Records Bureau (NCRB), provides a detailed analysis of the socio-demographic and legal landscape of India’s correctional system. The data is systematically categorised to track the composition of the prison population, including convicts, undertrials, detenues held under preventive laws like the NSA and PSA, and other inmates across all major facility types such as Central, District, Sub, Women, Open, and Special Jails, as well as Borstal Schools. Each dataset offers granular year-wise and state-wise insights into the social profile of prisoners, documenting their caste (SC, ST, OBC, and others), religious affiliation (Hindu, Muslim, Christian, Sikh, and others), and educational background ranging from illiterate to post-graduate and technical degree holders. Furthermore, the collection monitors critical metrics such as the domicile status of inmates (local, out-of-state, or foreign nationals), age-group distributions, and the specific circumstances of women prisoners staying with children. By providing both raw numbers and percentage shares at the All-India level, these datasets serve as a vital resource for analysing institutional trends, prison overcrowding, and the representation of marginalised communities within the Indian penal system.