A CISF official said that upon checking the box "we discovered a container of Bournvita" adding that the area was cleared within few minutes.
There were "no reports of disruption" of train services, a Delhi Metro spokesperson said, refusing to add further saying they do not comment on security related issues.
"We do not comment on security related issues but our train services are running smoothly. There were no reports of any disruption in operations," he said.