Vehicle Burning at Infocity

In an unfortunate event, a vehicle caught fire at the major traffic at Infocity Square, Patia, Bhubaneswar.

I was going to bring my son from school, and I passed by that road and there was nothing, but when we came back, the vehicle was burning and a team of fire fighters were engaged to control it. I tried to inquire, but its not clear, how the vehicle caught fire.