It takes lives to save lives. In India, the concept of the green corridor was first used by Chennai. Where an ambulance carried a heart
![Ambulance](https://zhl.org.in/blog/wp-content/uploads/2023/07/what-to-do-in-a-medical-emergency-2-800x500-1-1-1-1-1-1-1-1.jpg)
It takes lives to save lives. In India, the concept of the green corridor was first used by Chennai. Where an ambulance carried a heart