A mishap occurred during celebration of Prime Minister Narendra Modi's birthday in Chennai on September 17.
Workers of the Bharatiya Janata Party had collected helium balloons as part of the festivities.
However, sparks from fireworks reportedly led to an explosion in the balloons.
Over 30 BJP workers were reportedly injured in the incident and had to be rushed to a hospital.
Their injuries were minor, as per reports.
The BJP observed 'seva saptah' or service week to mark PM Modi's birthday.
He turned 70 on September 17 and tweeted that what he wants on his birthday is for people to follow Covid precautions like wearing face masks and following social distancing.
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