Hi Aspirant

Bank PO is Probationary officer and often joins at scale 1.

SCALE 1-        Assistant Manager.
SCALE 2-        Manager.
SCALE 3-        Senior Manager.
SCALE 4-        Chief Manager.
SCALE 5-        Assistant General Manager.
SCALE 6-        Deputy General Manager.
SCALE 7-        General Manager/Chief Financial Officer/Chief Executive Officer.

Good luck