NEW DELHI: The Union transport ministry on Thursday announced that the deadline for collection of toll charges on National Highways (NH) through the FASTag system has been till February 15. Earlier, the deadline set to January 1 with transport minister Nitin Gadkari saying that FASTag will be mandatory for all vehicles in the country. Under the original deadline, the National Highways Authority of India (NHAI) was slated to completely switch over to FASTag payment at toll plazas from January 1 onwards, which meant FASTags needed to be retrofitted on all four-wheelers and commercial vehicles.