The Centre has approved a ₹2,390-crore extension of Noida Metro's Aqua Line, adding five stations and improving connectivity to Greater Noida West. Centre approves ₹2,390 crore Noida Metro expansion.Five new stations planned across 8.449-km corridor.Extension to improve access to offices and commercial hubs.The Central government on Wednesday approved the extension of Noida Metro's Aqua Line by 8.