Whether or not the attackers decamped with any cash is being investigated, a police official told reporter.
He said a case under relevant sections of law has been registered and further investigations are going on.
Sources said that the unknown persons forced entry inside the bank by breaking one of its walls.
They ransacked property and damaged CCTV network installed in the bank branch.
Intial reports suggest that the unknown persons have taken away 4 CCTV cameras. (GNS)