The blaze started in one of these shops, located in Agrasen Chouraha area, and quickly spread to the other two adjacent outlets, a police official said.
The shops were being used to sell second hand vehicles, most of them two-wheelers. The vehicles were parked close to each other inside these shops, as a result the flames spread rapidly, he said.
About 400 two-wheelers were gutted, the official said, adding documents related to vehicles were also reduced to ashes.
The cause of the fire was not yet known, the official added.