A call was received around 9.55 PM about a cylinder blast at a tea stall in the Tata Steel jhuggis, said a senior officer of the Delhi Fire Services.
Four fire-tenders were rushed to the spot and the flames were brought under control by 11 PM, he added.
Two shanties were engulfed in the fire and at least nine persons received burn injuries in the incident, the officer said.
All the injured persons were rushed to the ESI and Safdarjung hospitals, said the police.
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