On Saturday, panic erupted briefly at Gandhi's roadshow in Jabalpur when helium-filled balloons burst into flames some distance away from his vehicle.
"In case of a protectee of the Special Protection Group (SPG), the security organisation investigates and submits a report.
Nobody was injured in the incident, they said.
When Gandhi was leading the campaign event in poll-bound Madhya Pradesh, a bunch of helium balloons held by a political worker touched oil lamps that another was holding for performing 'aarti' of the Congress chief.
A video shows Gandhi standing in an open vehicle accompanied by security personnel and people lined up on both sides of the road, and a huge flame erupting suddenly.
Gandhi is a protectee of the SPG, which guards the prime minister and former prime ministers, and their immediate family members.
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