Metro authorities seem to have dropped guard, with the hand-held metal detectors missing from the security check at the 132 metro stations in the city. Frisking of passengers has become lax with the security personnel just restricting it to a pat-down check.

Rohit Katiyar, assistant inspector general and public relations officer, CISF explains the toning down of the security check as a fallout of the increased number of passengers at all stations since the new lines were opened. With the passenger load booming, the hand-held detectors' batteries ran out of charge. Now, the CISF is trying to procure new batteries for the detectors, Katiyar adds.

With five lakh footfalls at the metro stations daily, the authorities now must focus on the increased need for security at the stations.