The fire started at around 1.10 PM today when the bus was at the Nangloi flyover, a senior police officer said.
The vehicle was carrying 35 students of the Government Girls' Senior Secondary School in Nangloi.
With smoke billowing out of the bus, passers-by safely rescued the students and informed the Delhi Fire Services and police.
A fire tender was also rushed to the spot. No casualty or injury was reported, the police officer said.
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