Why underground Siliguri corridor is called India's next "Chicken Neck"? Check it's route and key details

Indias next strategic Chicken Neck is set for a major connectivity boost. The new route will start from Tinmile Hat, pass through Rangapani, and stretch onward to Bagdogra.  

India's Next Chicken Neck: India's strategic "Chicken Neck" corridor is all set for a major connectivity boost to North-eastern states. In a major upgradation boost, Indian Railways has announced plans to construct a new underground railway line through the Siliguri Corridor, Known as "Chicken's Neck"

Union minister for railways, information & broadcasting and electronics & information technology, Ashwini Vaishnaw mentioned that the project is designed to ensure secure, reliable and uninterrupted rail connectivity in this strategically "sensitive region". 

The route passes through the Siliguri Corridor, popularly known as the “Chicken Neck,” because of its shape on the map. The narrow strip of land resembles a chicken’s neck that connects the “body” (mainland India) to the “head” (the Northeastern states).

Geographically, this corridor is barely about 20–22 km wide at its narrowest point. It is bordered by Nepal on one side and Bangladesh on the other, with Bhutan and China located further north. Because it is such a thin land link, it forms the only direct surface connection between the Northeast and the rest of India.