Chennai Metro Rail Limited (CMRL) conducted trial runs on 5.5 km Vadapalani-Poonamalle stretch under the Chennai Metro Rail Phase II Project on January 11, 2026.
The project involves development of 118.9 km three metro corridors (Corridor III, IV and V) in Chennai, Tamil Nadu at an estimated cost of Rs 632.46 billion. It is mostly underground with an elevated section confined to a few short stretches and consists of 128 stations in total.