According to sources in metro rail, the additional coaches will take about six to eight months to arrive as they are customized. A senior official explained, "Every metro rail has it's own specifications for coaches, based on that the coaches are readied and sent." Tender Process: Officials were instructed to initiate the tender process for Metro rail construction on this corridor without delay. Clearance from Central Government: The clearance from central government is one of the fundamental reasons for the delay in the metro rail extension. For this reason, the extension stage of metro rail will take time for clearance."