Railway Minister said most of Kerala's proposed third and fourth line projects remain at the field location survey or DPR preparation stage. E. Sreedharan (Metroman) had submitted an interim report and a letter proposing a standard-gauge high-speed rail corridor from Thiruvananthapuram to Kannur. The minister said most of Kerala's proposed third and fourth line projects remain at the field location survey or DPR preparation stage. Of the nine sanctioned railway projects in Kerala covering a total of 302 km, only 40 km had been completed by March. None of the 148 km of sanctioned new railway line projects has been commissioned so far.