Delhi Metro on Saturday said it has rejected an offer by Reliance Infrastructure to quit the showcase Airport Metro Express citing financial non-viability and indicated that the corridor might be thrown open to public by Diwali. Delhi Metro managing director Mangu Singh admitted that Reliance Infrastructure-led Delhi Airport Metro Express Private Limited (DAMEPL) had sent a notice for terminating the Concession Agreement signed between the two, thereby exiting the corridor.

"They (DAMEPL) sent the notice. But, we have rejected," Singh told reporters here. "Repairs are almost complete. The line will undergo a safety inspection and then will be opened." Asked whether the line would be opened by Diwali, he said, "Two to three weeks, around Diwali we may be (able to operate.)"DAMEPL has been struggling to run the line ever since the operations were launched in February last year.