Brahm Singh (65) owns two adjoining houses in D Block of Lalbagh Colony. He along with his family members lives in one of them, leaving the other one vacant, they said.
The incident took place last night when Singh woke up hearing a noise coming from his vacant house and went to check there with his licensed rifle.
He found four armed robbers inside the house who opened firing at him. However, the ex-Army personnel escaped unhurt.
A case has been registered in this regard, they added.
