The incident took place at around 8:45 pm on Saturday, Sep 25.
Four people came on motor bikes and started firing at the office board, displaying the company name, and the glass panes around it.
No one was injured in the attack and all the attackers managed to escape after the incident.
However, one of the shooters of the gang, identified as Chandu alias Chandrashekhar was shot dead in a midnight encounter.
Bangalore's Joint Commissioner of Police Alok Kumar confirmed that Ravi Poojari's gang had made extortion calls in the past as well using calling cards.