However, Reliance Infrastructure maintained that a decision to suspend services on the 23-km high-speed corridor was taken on the issue of safety after receiving expert advice.
Services on the Airport Metro were suspended from Sunday last after some faults on the civil structure was detected on the corridor. While Delhi Metro has built the civil structure on the Line, the Reliance Infra is responsible for operations and maintanence.
As it appeared that the blame was being shifted to the Delhi Metro, its chief Mangu Singh dashed off a letter to Urban Development Minister Kamal Nath earlier this week apparently blaming the Reliance Infrastructure for the current situation.
In the letter written on July 11, Singh is believed to have blamed Reliance Infra for not detecting the defects in the beraings which are the interface between the pillar and girder.
Asked to react on the development, Reliance Infra spokesman said: "Passenger safety is our primary concern. Thus, in keeping with our corporate philosophy of attaching the highest importance to safety, we have taken this decision, on the basis of expert advice received."
A committee comprising officials from the Indian Railways, Delhi Metro and Reliance Infrastructure is already going into the nature of defects and would submit a report within the next couple of days after which rectification works would be carried out.