The 79-year-old Gandhi, battling chronic respiratory issues exacerbated by Delhi pollution, underwent routine observation under a team of doctors, with no serious concerns reported.
"A team of doctors is attending to her, but there is nothing serious," sources said, as quoted by PTI.
This follows a January admission for similar cough and chest problems, from which she recovered. Family members, including Rahul and Priyanka Gandhi Vadra, were present.
Updates are awaited as she remains under supervision.