The Tihar Jail complex in New Delhi, India, is often cited as one of the largest prison complexes in the world. It consists of multiple jails within a single complex and has the capacity to house thousands of inmates. Tihar Jail is known for its size, housing capacity, and the variety of facilities it offers, including vocational training programs, educational opportunities, and recreational activities for inmates.

While Tihar Jail is frequently referred to as one of the largest prison complexes globally, determining the “biggest” jail can depend on various factors, including the criteria used for measurement (such as total capacity, number of inmates, or physical size of the facility) and whether one considers individual prisons or entire prison complexes. Due to the dynamic nature of prison systems worldwide, rankings and classifications may change over time.