Chennai Metro Rail Limited (CMRL) ran a trial train on Sunday from Porur Junction to Vadapalani, covering 5.5 km, including a special 4-km double-decker segment. The train started at 11:15 a.m., running at a slow 15 kmph, and reached Vadapalani at 12:10 p.m. This trial follows a previous run from Poonamallee to Porur done nine months ago. CMRL managing director M.A. Siddique said services will run from Poonamallee to Vadapalani once ongoing construction finishes by June. Commuters can switch trains at Vadapalani to reach other areas on the phase I network. Initially, trains will have drivers (GoA 2 automation), although CMRL plans to move to driverless operations later (GoA 4). CMRL received an interim speed certificate last month and expects the safety clearance soon. Mr. Siddique said, "We hope to complete these processes soon and start the services by mid-February." At first, passengers will leave the new Vadapalani Phase II station and walk to the older Vadapalani Phase I station to exit. Meanwhile, CMRL is also preparing to resubmit metro project proposals for Coimbatore and Madurai to the Centre after government feedback. This trial run is an important step for faster, smoother travel from Poonamallee to Vadapalani, cutting down peak-hour traffic delays.