CMRL will soon open the Poonamallee–Vadapalani stretch of Corridor 4, marking the first Phase I–II interchange at Vadapalani. Next, the Koyambedu–Chennai Trade Centre section of Corridor 5 will be launched. Alapakkam–Saligramam stations will open in June. Viaduct work will finish by March, with 2 km of the 12 km track already laid.