Why the Siliguri Corridor is vital to India's Northeast security?

Siliguri Corridor, also called Chicken's Neck, is a narrow land strip linking mainland India to its seven northeastern states. Just 22 km wide, it is crucial for defence, trade and daily supplies. Any disruption could isolate the region, making the corridor one of India's most sensitive and strategic zones. It borders four countries, making it highly sensitive to security threats.