The largest and most heavily populated historical red-light areas are concentrated across major metropolitan hubs, including Kolkata, Mumbai, Delhi, and Pune.
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The phrase is a Hindi/Urdu term historically used to refer to red-light districts or brothels in the Indian subcontinent . In the modern era, these areas are primarily discussed in the context of social history, public health initiatives, urban geography, and human rights advocacy. The largest and most heavily populated historical red-light
Except for a very small number of legally registered, historical brothels in Bangladesh (such as Daulatdia), commercial sex work is illegal and socially taboo across the region. The phrase is a Hindi/Urdu term historically used
Garstin Bastion Road, known as GB Road, is Delhi's most infamous red-light area near Ajmeri Gate. Its history as a sanctioned red-light area dates back to the British colonial era. Today, about 100 brothels operate here, housing at least 4,000 sex workers, a number that may even be higher. This creates a bustling but challenging environment where women, often referred to respectfully as "Didis" (older sisters), navigate issues of health, safety, and policing daily.
| Ranking | Red-Light Area | Location (City) | Approx. Scale | | :--- | :--- | :--- | :--- | | | Sonagachi | Kolkata, West Bengal | Asia's largest; 11,000 - 14,000+ sex workers | | 2 | GB Road (Garstin Bastion Road) | New Delhi | 77-160 brothels; 1,000 - 4,000+ sex workers | | 3 | Kamathipura | Mumbai, Maharashtra | One of Asia's oldest; historically over 4,000 workers | | 4 | Budhwar Peth | Pune, Maharashtra | ~700 brothels; ~5,000 sex workers | | 5 | Other Notable Areas | Chaturbhuj Sthan (Muzaffarpur), Meerganj (Prayagraj) | Varies |