The Narcotics Control Bureau is the apex coordinating agency. It also functions as an enforcement agency through its zones and sun-zones. Zones located at Ahmedabad, Bangaluru, Chandigarh, Chennai, Delhi, Guwahati, Indore, Jammu, Jodhpur, Kolkata, Lucknow, Mumbai, and Patna. Sub-zones located at Ajmer, Amritsar, Bhubaneswar, Dehradun, Goa, Hyderabad, Imphal, Mandsaur, Madurai, Mandi, Raipur, Ranchi and Thiruvananthpuram.