A security guard of a nationalised bank in Delhi's Defence Colony area allegedly opened fire inside the premises on Tuesday, injuring a customer.
The guard has been apprehended by the police also recovered the weapon used during the attack. The accused, identified as Rudra Pal Singh, is a resident of Delhi.
A case under Sections 336 and 337 of the Indian Penal Code and 30 Arms Acts has been registered at the Defence Colony Police Station, and the probe is underway.
The injured customer, identified as Rajender Singh has been taken to a hospital for treatment.