 On 28 August 2014, the State Government decided to use Metro, instead of Monorail, in Thiruvananthapuram and Kozhikode, mainly due to cost overruns.Though slightly costlier, Metro has several advantages, such as easy raising of capacity, DMRC's expertise in the field and more number of companies who can bid for the project.The Thiruvananthapuram line will start from Technocity and terminate at Karamana covering a distance of 22.537 km with 19 stations, along the old NH 47.