India is located between the Golden Crescent (made of Pakistan, Afghanistan, and Iran) and the Golden Triangle (made of Myanmar, Thailand, and Laos). The Golden Crescent and the Golden Triangle are the two biggest makers of opium in Asia. (Opium can be smoked on its own, or it can be made into heroin.) But their opium-making is illicit - secret and illegal. Because of India's location, a lot of this illegal opium is trafficked (snuck illegally) through India's borders.